Rheumatology - Main

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Questions and Answers

What is the primary mechanism of action of Disease-Modifying Anti-Rheumatic Drugs (DMARDs) in treating Rheumatoid Arthritis?

  • Directly repairing damaged joint tissue and cartilage.
  • Increasing joint lubrication to improve mobility.
  • Targeting and modifying the entire immune system to reduce inflammation. (correct)
  • Providing immediate pain relief through analgesic effects.

Which oral condition is most frequently associated with Rheumatoid Arthritis?

  • Sjogren's syndrome (correct)
  • Gingivitis
  • Lichen planus
  • Angular cheilitis

Why are early morning appointments generally discouraged for dental patients with Rheumatoid Arthritis?

  • There is a higher risk of triggering lichenoid reactions.
  • The effects of NSAIDs are weakest in the morning.
  • Patients typically experience increased joint stiffness in the morning. (correct)
  • Salivary flow is reduced, complicating dental procedures.

What is the primary difference between Systemic Lupus Erythematosus (SLE) and Discoid Lupus Erythematosus (DLE)?

<p>SLE affects multiple organ systems and is potentially fatal, while DLE is mainly a mucocutaneous condition. (D)</p> Signup and view all the answers

Which of the following is NOT a known trigger for Lupus Erythematosus?

<p>High-fiber diet (B)</p> Signup and view all the answers

A patient undergoing treatment for Rheumatoid Arthritis presents with oral mucositis. Which medication is most likely the cause?

<p>Methotrexate (D)</p> Signup and view all the answers

What is the significance of the bi-directional relationship between Rheumatoid Arthritis and Periodontal Disease in the context of patient management?

<p>It indicates that controlling periodontal inflammation may help manage Rheumatoid Arthritis symptoms and vice versa. (D)</p> Signup and view all the answers

A dentist is treating a patient with SLE who is also on bisphosphonates. What potentially severe complication should the dentist be aware of and monitor for?

<p>Elevated risk of MRONJ. (D)</p> Signup and view all the answers

Which of the following is identified as a significant risk factor for the development of Rheumatoid Arthritis (RA)?

<p>Genetic predisposition (D)</p> Signup and view all the answers

Which diagnostic blood test is commonly used to aid in the diagnosis of Rheumatoid Arthritis (RA)?

<p>Erythrocyte Sedimentation Rate (ESR) (C)</p> Signup and view all the answers

Stiffness associated with Rheumatoid Arthritis (RA) is most distinguishable from Osteoarthritis (OA) by:

<p>The duration of morning stiffness (C)</p> Signup and view all the answers

Porphyromonas gingivalis, a pathogen implicated in the aetiology of Rheumatoid Arthritis (RA), is primarily associated with which condition that increases RA risk?

<p>Periodontal disease (B)</p> Signup and view all the answers

In the early stages of Rheumatoid Arthritis (RA), which joints are most commonly affected?

<p>Small joints of the hands and feet (A)</p> Signup and view all the answers

Which of the following is classified as an extra-articular symptom of Rheumatoid Arthritis (RA)?

<p>Generalised fatigue (D)</p> Signup and view all the answers

The primary therapeutic goal of drug treatment for Rheumatoid Arthritis (RA) is to:

<p>Alleviate symptoms and limit progressive joint damage (B)</p> Signup and view all the answers

Which specific genetic marker, associated with antigen presentation, is most strongly linked to an increased susceptibility to Rheumatoid Arthritis (RA)?

<p>HLA-DR4 (C)</p> Signup and view all the answers

Which skin manifestation of lupus is characterized by a butterfly-shaped rash that typically spares the nasolabial folds?

<p>Malar rash (D)</p> Signup and view all the answers

According to the American College of Rheumatology criteria for diagnosing lupus, how many criteria must be met?

<p>At least four (B)</p> Signup and view all the answers

What type of joint involvement is most characteristic of lupus-related arthritis?

<p>Symmetrical polyarthritis affecting both large and small joints (D)</p> Signup and view all the answers

Libman-Sacks endocarditis, a specific cardiovascular complication associated with lupus, affects which part of the heart?

<p>Endocardium (C)</p> Signup and view all the answers

A patient with lupus presents with pleuritic chest pain. Which organ is primarily affected in pleuritis?

<p>Lungs (B)</p> Signup and view all the answers

Which neurological manifestation of lupus is characterized by inflammation of the brain tissue and can potentially lead to seizures, psychosis, or coma?

<p>Cerebritis (B)</p> Signup and view all the answers

A lupus patient's urinalysis reveals proteinuria and hematuria. Which of the following is the most likely underlying renal complication?

<p>Lupus nephritis (D)</p> Signup and view all the answers

While there is no cure for lupus, what is the primary goal of treatment?

<p>To prevent flares and minimize the severity and duration of symptoms (A)</p> Signup and view all the answers

Denosumab affects bone turnover for approximately how many months after the treatment is completed?

<p>9 months (C)</p> Signup and view all the answers

Which of the following is NOT a VEGF inhibitor?

<p>Vascular endothelial growth factor (A)</p> Signup and view all the answers

Why does the risk of MRONJ increase with the cumulative dose of bisphosphonate drug therapy?

<p>Bisphosphonates have a long half-life and accumulate in bone over time. (B)</p> Signup and view all the answers

Which dental procedure carries the highest risk for precipitating MRONJ?

<p>Tooth extraction (A)</p> Signup and view all the answers

A patient treated with anti-angiogenic drugs for cancer needs a tooth extraction. What is the most appropriate approach?

<p>Extraction should be avoided if possible but can be done with appropriate management because Patients being treated with anti-angiogenic drugs (or both) <strong>for cancer</strong> are always considered to be at higher risk of MRONJ (B)</p> Signup and view all the answers

A patient has been taking oral bisphosphonates for 6 years to treat osteoporosis and is also on systemic glucocorticoids for a chronic inflammatory condition. Which of the following factors increases their risk of developing MRONJ?

<p>The duration of bisphosphonate use, concurrent use of systemic glucocorticoids. (A)</p> Signup and view all the answers

Why does dental/mucosal trauma from ill-fitting dentures increase the risk of MRONJ in patients on anti-resorptive medications?

<p>Trauma can cause mucosal ulceration and expose the bone to the oral environment. (D)</p> Signup and view all the answers

A patient on long-term denosumab therapy requires a tooth extraction. Despite meticulous surgical technique and post-operative care, the extraction site fails to heal, and MRONJ is suspected. Which of the following best explains why denosumab, unlike bisphosphonates, is still implicated in MRONJ development?

<p>Denosumab's primary mechanism of action—RANKL inhibition—disrupts bone remodeling, impairing the bone's ability to repair microdamage and resist infection after invasive procedures. (A)</p> Signup and view all the answers

Which medication used in the management of lupus can potentially trigger lichenoid reactions in the oral cavity?

<p>Hydroxychloroquine (A)</p> Signup and view all the answers

What is the primary mechanism of action of anti-resorptive drugs in preventing bone resorption?

<p>Inhibition of osteoclast differentiation and function (C)</p> Signup and view all the answers

A patient presents with exposed bone in the mandible that has persisted for 10 weeks following a dental extraction. They have a history of osteoporosis treated with oral bisphosphonates for 5 years. They deny ever receiving radiation therapy to the head and neck region. Based on this information, which condition is most likely?

<p>Medication-related osteonecrosis of the jaw (MRONJ) (A)</p> Signup and view all the answers

Which of the following is NOT typically associated with MRONJ?

<p>Trismus (B)</p> Signup and view all the answers

Which of the following lifestyle choices is recommended for maintaining good oral health and potentially reducing the risk of MRONJ?

<p>Practicing excellent oral hygiene. (B)</p> Signup and view all the answers

What is the approximate half-life of alendronic acid (AA) in bone tissue?

<p>10 years (B)</p> Signup and view all the answers

What immediate action should a dental practitioner advise a patient to take following a tooth extraction if they experience pain, tingling, numbness, altered sensation, or swelling?

<p>Immediately contact the dental practice. (A)</p> Signup and view all the answers

A patient with lupus is prescribed corticosteroids. What is the primary mechanism by which corticosteroids aid in the management of lupus symptoms?

<p>Decreasing inflammation (A)</p> Signup and view all the answers

For patients considered at higher risk of complications following a dental extraction, what initial step should a dental practitioner take?

<p>Explore all alternatives where teeth could potentially be retained. (A)</p> Signup and view all the answers

A patient is undergoing treatment with bisphosphonates for osteoporosis. According to current guidelines, what is the recommendation regarding drug holidays to prevent MRONJ?

<p>Drug holidays are not recommended as the benefits of the drugs outweigh the risk of MRONJ. (B)</p> Signup and view all the answers

Considering the dual mechanisms of bone remodeling, which statement accurately describes the interplay between osteoblasts and osteoclasts?

<p>Osteoblasts create new bone tissue, while osteoclasts break down and resorb bone tissue, maintaining a dynamic equilibrium in healthy bone. (B)</p> Signup and view all the answers

A patient with severe osteoporosis and a history of MRONJ undergoing bisphosphonate therapy requires a dental extraction. Considering the elevated risk of complications, which of the following strategies represents the MOST appropriate, evidence-based approach to minimize the risk of exacerbating MRONJ following the extraction?

<p>Continuing bisphosphonate therapy, extracting the tooth atraumatically, performing alveoloplasty to eliminate sharp bony margins, administering local and systemic antibiotics, and closely monitoring the site for prolonged healing. (B)</p> Signup and view all the answers

Which of the following factors increases the risk of developing MRONJ?

<p>Treatment with bisphosphonates for over 5 years. (D)</p> Signup and view all the answers

A patient presents with exposed, asymptomatic bone in the oral cavity following bisphosphonate treatment, with no signs of infection. Which stage of MRONJ does this most likely represent, and what is the appropriate initial management?

<p>Stage 1; symptomatic treatment with oral antibacterial mouth rinse. (A)</p> Signup and view all the answers

A patient with Stage 2 MRONJ presents with exposed necrotic bone, pain, and evidence of infection. What is the MOST appropriate treatment approach?

<p>Symptomatic treatment with oral antibiotics, antibacterial mouth rinse, pain control, and debridement. (A)</p> Signup and view all the answers

In a patient presenting with Stage 3 MRONJ, characterized by exposed necrotic bone extending beyond the alveolar region and a pathological fracture of the mandible, what surgical intervention is MOST appropriate for long-term palliative care?

<p>Surgical debridement/resection to manage the necrotic bone and prevent further complications. (A)</p> Signup and view all the answers

Which bodily system is LEAST likely to be directly affected by autoimmune conditions?

<p>Reproductive system (C)</p> Signup and view all the answers

What is the MOST important role of a dentist in the context of rheumatological diseases?

<p>Identifying oral manifestations of disease (B)</p> Signup and view all the answers

A dentist notices signs of xerostomia (dry mouth) and bilateral parotid gland enlargement in a new patient. Which of the following rheumatologic conditions should the dentist FIRST consider?

<p>Rheumatoid Arthritis (B)</p> Signup and view all the answers

Why might oral lesions in a patient with a known rheumatological condition be particularly informative to their dentist?

<p>They can be an early sign of disease or reflect current disease activity. (B)</p> Signup and view all the answers

If, through comprehensive examination and questioning, a dentist suspects a patient may be exhibiting early, undiagnosed signs of a rheumatological disorder, what is the MOST ethical next step the dentist should take?

<p>Share their suspicions directly with the patient and strongly advise them to urgently consult with a qualified rheumatologist for a comprehensive evaluation. (A)</p> Signup and view all the answers

Which of the following clinical manifestations is commonly associated with lupus-related cerebritis?

<p>Severe headaches, psychosis, or seizures (B)</p> Signup and view all the answers

A patient with lupus presents with inflammation of the lung pleura. What is the correct terminology for this condition?

<p>Pleuritis (B)</p> Signup and view all the answers

What haematological abnormality is commonly observed in patients with lupus?

<p>Thrombocytopenia (B)</p> Signup and view all the answers

Libman-Sacks endocarditis (LSE) is a specific cardiovascular complication associated with lupus. Which layer of the heart is affected in LSE?

<p>Endocardium (C)</p> Signup and view all the answers

A patient presents with a red, raised, disk-shaped rash associated with lupus. This rash heals with scarring and can lead to alopecia. What type of skin manifestation is this?

<p>Discoid rash (B)</p> Signup and view all the answers

Which of the following is a TRUE statement regarding the malar rash associated with Systemic Lupus Erythematosus (SLE)?

<p>It involves a butterfly-shaped rash over the cheeks and bridge of the nose, typically sparing the nasolabial folds. (C)</p> Signup and view all the answers

A female patient in her second trimester of pregnancy, previously diagnosed with lupus, experiences a miscarriage. Which lupus-related factor is MOST likely to contribute to this adverse pregnancy outcome?

<p>Heightened risk of miscarriage during the second trimester (A)</p> Signup and view all the answers

A patient is suspected of having lupus. Based on the American College of Rheumatology criteria, which combination of findings would STRONGLY suggest a diagnosis of lupus?

<p>Malar rash sparing the nasolabial folds, arthritis, and positive anti-dsDNA antibodies. (C)</p> Signup and view all the answers

Which of the following is the primary target of antibodies in Rheumatoid Arthritis (RA)?

<p>Synovial membrane (C)</p> Signup and view all the answers

Which genetic factor is most strongly associated with an increased risk of developing Rheumatoid Arthritis (RA)?

<p>Presence of the HLA-DR4 genotype (C)</p> Signup and view all the answers

Which of the following is a typical characteristic of joint stiffness associated with Rheumatoid Arthritis (RA)?

<p>Lasts for more than one hour after inactivity (B)</p> Signup and view all the answers

Which extra-articular manifestation of Rheumatoid Arthritis is MOST likely to increase a patient's risk of cardiovascular events?

<p>Increased risk of atherosclerosis (A)</p> Signup and view all the answers

Besides genetics, which environmental factor is MOST closely associated with an increased risk of developing Rheumatoid Arthritis (RA)?

<p>Smoking (A)</p> Signup and view all the answers

During an acute flare-up of Rheumatoid Arthritis, which symptom is MOST indicative of active inflammation within the affected joints?

<p>Swollen, warm, and painful joints (A)</p> Signup and view all the answers

A patient with long-standing Rheumatoid Arthritis develops an insidious onset of fatigue, cognitive dysfunction, and peripheral neuropathy. Which of the following is the MOST likely underlying mechanism contributing to these neurological symptoms?

<p>Chronic systemic inflammation leading to neurological sequelae (A)</p> Signup and view all the answers

A patient with poorly controlled Rheumatoid Arthritis (RA) exhibits signs of both anemia and thrombocytopenia on a complete blood count (CBC). They have no known history of bleeding disorders. Which pathological mechanism is MOST likely responsible for this patient's hematological abnormalities?

<p>Antibody-mediated destruction of erythrocytes and platelets (A)</p> Signup and view all the answers

Which of the following best describes the mechanism of action of bisphosphonates in preventing bone resorption?

<p>Inhibiting enzymes essential to the formation, recruitment, and function of osteoclasts. (A)</p> Signup and view all the answers

What is the primary target of biological DMARDs in the treatment of severe Rheumatoid Arthritis?

<p>Specifically targeting components of the immune system to reduce inflammation. (B)</p> Signup and view all the answers

What is the rationale behind using hydroxychloroquine in the treatment of Systemic Lupus Erythematosus (SLE)?

<p>To decrease the risk of lupus flare-ups. (B)</p> Signup and view all the answers

A patient with SLE is prescribed corticosteroids. What is the primary therapeutic effect of these medications?

<p>Decreasing inflammation associated with lupus. (A)</p> Signup and view all the answers

Which of the following dental management strategies is MOST suitable for a patient with Rheumatoid Arthritis experiencing trismus due to TMJ involvement?

<p>Modifying oral hygiene aids and techniques to accommodate limited mouth opening. (B)</p> Signup and view all the answers

A patient taking bisphosphonates is scheduled for a tooth extraction. Which of the following signs or symptoms should immediately raise concern for the development of MRONJ post-extraction?

<p>Delayed healing with exposed bone, pain, and soft tissue swelling persisting beyond eight weeks. (A)</p> Signup and view all the answers

Which of the following best explains why smoking reduces the efficacy of treatments for Rheumatoid Arthritis (RA)?

<p>Smoking induces systemic inflammation, which counteracts the anti-inflammatory effects of RA medications. (C)</p> Signup and view all the answers

Apart from lichenoid reactions, what is another potential oral side effect associated with NSAIDs?

<p>Peptic ulcers. (B)</p> Signup and view all the answers

A patient with long-standing SLE presents with oral ulcerations and is also being treated with corticosteroids. What underlying condition associated with corticosteroid use could be contributing to these ulcerations?

<p>Anaemia. (A)</p> Signup and view all the answers

Which of the following factors is LEAST likely to be implicated in the development or exacerbation of Systemic Lupus Erythematosus (SLE)?

<p>Vitamin D deficiency (D)</p> Signup and view all the answers

A patient is diagnosed with MRONJ after prolonged bisphosphonate therapy. Besides drug history and clinical presentation, which of the following factors is MOST crucial in confirming the diagnosis, according to the established definition?

<p>Absence of a history of radiation therapy to the jaws. (C)</p> Signup and view all the answers

What is the most likely reasoning behind avoiding morning appointments for RA patients?

<p>To minimize discomfort associated with early morning joint stiffness. (A)</p> Signup and view all the answers

A patient on long-term bisphosphonates requires extensive dental rehabilitation including multiple extractions. Which of the following strategies represents the MOST evidence-based approach to minimize the risk of MRONJ in this patient?

<p>Performing atraumatic extractions, ensuring meticulous wound closure, and emphasizing stringent oral hygiene. (D)</p> Signup and view all the answers

Consider a patient who has been on long-term bisphosphonate therapy and is now suspected of having MRONJ. Despite thorough clinical and radiographic evaluation, the diagnosis remains uncertain due to atypical presentation. Which of the following advanced diagnostic modalities would provide the MOST definitive evidence to confirm or refute the diagnosis of MRONJ?

<p>Histopathological examination of a bone biopsy specimen obtained from the affected area, focusing on identifying avascular necrosis and the presence of empty lacunae. (D)</p> Signup and view all the answers

Which of the following describes a key difference between discoid lupus erythematosus (DLE) and systemic lupus erythematosus (SLE)?

<p>DLE is primarily a mucocutaneous condition affecting the skin, whereas SLE is a multisystem disease. (B)</p> Signup and view all the answers

A 32-year-old female presents with a malar rash, oral ulcers, and arthritis. Initial blood work reveals a positive antinuclear antibody (ANA) test but negative anti-dsDNA and anti-Sm antibodies. She reports fatigue and photosensitivity. Which of the following conditions is MOST likely, considering the limitations of the serological findings?

<p>Undifferentiated Connective Tissue Disease (UCTD) evolving towards SLE. (C)</p> Signup and view all the answers

Which of the following is a characteristic feature of Behcet's disease?

<p>Oral and genital ulcers (C)</p> Signup and view all the answers

Prednisolone mouthwash is used in Behcet's disease to manage oral ulcers. What is a potential risk associated with its use if swallowed?

<p>Adrenal suppression (C)</p> Signup and view all the answers

Systemic Lupus Erythematosus (SLE) exhibits a higher prevalence in which demographic group?

<p>Asian and African women (C)</p> Signup and view all the answers

What is the typical skin rash associated with Systemic Lupus Erythematosus, often sparing the nasolabial folds, commonly referred to as?

<p>Butterfly rash (D)</p> Signup and view all the answers

Methotrexate-induced oral mucositis is primarily attributed to its action as an antimetabolite. Which cellular process is most directly affected by this mechanism?

<p>DNA Production (C)</p> Signup and view all the answers

Which oral manifestation of Systemic Sclerosis is most likely to directly impede a patient's ability to maintain effective oral hygiene?

<p>Microstomia (C)</p> Signup and view all the answers

Considering the overlapping symptoms of oral ulcers and joint pain, which of the following clinical features is most helpful in differentiating Behcet's disease from Systemic Lupus Erythematosus?

<p>Presence of genital ulcers in Behcet's (C)</p> Signup and view all the answers

What is a common symptomatic presentation of Temporomandibular Joint (TMJ) involvement in patients with rheumatic diseases?

<p>Limitation in mouth opening (B)</p> Signup and view all the answers

Folic acid supplementation is routinely recommended for patients undergoing methotrexate therapy. What is the primary therapeutic rationale for this co-prescription?

<p>To reduce side effects like oral mucositis (C)</p> Signup and view all the answers

Microangiopathy is a significant feature of Systemic Sclerosis. Which of the following accurately describes microangiopathy in the context of this disease?

<p>Disease of small blood vessels leading to Raynaud's phenomenon, digital ulceration, and telangiectasia (C)</p> Signup and view all the answers

Flashcards

Rheumatoid Arthritis (RA)

Autoimmune disease where antibodies attack the synovial membrane.

RA Genetic Risk Factor

HLA-DR4 genotype increases genetic predisposition to RA.

RA and Sex

Being female triples the risk of developing RA.

RA Onset Age

RA diagnosis is most likely between 30-60 years of age.

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Smoking and RA

RA risk increases threefold with smoking.

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Early RA Joint Impact

Early RA affects small joints in hands and feet symmetrically.

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RA Stiffness Duration

Joint stiffness lasting over an hour, especially in the morning.

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RA Acute Flare

Sudden symptom worsening, causing swollen, warm, and painful joints.

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Malar Rash

Rash over cheeks and nose, spares nasolabial folds.

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Discoid Rash

Red, raised, disk-shaped rash that can cause scarring and hair loss if on the scalp.

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Polyarthritis

Pain and inflammation in multiple joints, usually symmetrical.

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Pleuritis

Inflammation of the outer lining of the lung, causing chest pain.

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Cerebritis

Inflammation of brain tissue; can cause seizures, psychosis, and coma.

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Leukopenia

Low white blood cell count.

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Thrombocytopenia

Low blood platelet count.

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Anti-nuclear antibodies (ANA)

Antibodies that react against the body's own cell nuclei; a common test for Lupus.

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DMARDs

Drugs that modify the immune system to reduce swelling, lower inflammatory markers, and limit progressive joint damage in rheumatoid arthritis.

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Methotrexate

An anti-metabolite DMARD, often the first medicine given for rheumatoid arthritis.

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Biological DMARDs

DMARDs, usually given by injection, for patients with very severe rheumatoid arthritis, often in combination with traditional DMARDs.

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NSAIDs for RA

Drugs used for pain relief, but with potential side effects like lichenoid reactions.

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Lupus Erythematosus

Autoimmune disorder causing inflammation of connective tissues; can be systemic (SLE) or discoid (DLE).

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Systemic Lupus Erythematosus (SLE)

A chronic autoimmune disease affecting multiple organs, potentially fatal, causing widespread inflammation.

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SLE Risk Factors

Women of child-bearing age, individuals aged 15-40, those with a family history, and people of Black, Asian, or minority ethnic backgrounds.

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SLE Triggers

Viral infections, sunlight, smoking, certain medicines, and hormones (especially oestrogen).

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Denosumab

A fully human monoclonal antibody that inhibits osteoclast function and bone resorption by binding to RANKL.

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Anti-angiogenic drugs

Drugs targeting new blood vessel formation to restrict tumor vascularization.

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Anti-angiogenic drugs associated with MRONJ

VEGF inhibitors like bevacizumab and aflibercept, and receptor tyrosine kinase (RTK) inhibitors like Sunitinib

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Dental Treatment Risk Factor for MRONJ

Dentoalveolar surgery and any procedure impacting bone.

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Bisphosphonate Drug Therapy and MRONJ Risk

The risk of MRONJ increases as the cumulative dose and the drug increases.

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Concurrent Medication Risk for MRONJ

Chronic systemic glucocorticoid use with anti-resorptive or anti-angiogenic drugs increases MRONJ risk.

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High MRONJ Risk Patients

Patients treated with anti-angiogenics/anti-resorptives for cancer.

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NSAIDs for Lupus

Reduce fever and joint swelling/pain associated with lupus.

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Corticosteroids for Lupus

Decreases inflammation associated with lupus; e.g., prednisone.

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MRONJ prevention

Personalized oral hygiene advice can decrease the risk of oral complications.

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Hydroxychloroquine for Lupus

Anti-malarial drug that decreases the risk of lupus flare-ups.

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MRONJ Definition

Exposed bone in the jaw that persists for over 8 weeks in patients treated with anti-resorptive or anti-angiogenic drugs, with no history of jaw radiation.

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Anti-Resorptive Drugs Mechanism

Inhibit osteoclast function, decreasing bone resorption and remodeling.

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Bisphosphonates Action

Bisphosphonates inhibit enzymes essential to osteoclast formation, recruitment, and function, reducing bone resorption.

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Anti-resorptive drugs

Inhibits osteoclast differentiation and function.

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Bisphosphonates

Bisphosphonates reduce bone resorption

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Excellent Oral Hygiene

Practices for maintaining healthy teeth and gums.

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Post-extraction advice

Advising the patient to contact the practice if they experience pain, tingling, numbness, altered sensation, or swelling.

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Explaining MRONJ risk

Explain the small risk, mostly occurring after extractions but can occur spontaneously

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Increased MRONJ Risk Factors

Being treated for cancer, Bisphosphonates for over 5 years, Previous history of MRONJ, Anti-resorptive/anti-angiogenic drugs with systemic glucocorticoids

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MRONJ Stage 0

Patient is at risk of developing MRONJ, but has no exposed bone.

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MRONJ Stage 1

Exposed bone/fistula that probes into bone that is asymptomatic with no sign of infection.

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MRONJ Stage 2

As stage 1, with evidence of infection and pain.

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What is Rheumatology?

The branch of medicine focused on musculoskeletal diseases and systemic autoimmune conditions.

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Autoimmune Condition

Immune system attacks healthy tissues, causing inflammation, damage, and symptoms in various organs.

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Osteoarthritis

Osteoarthritis involves the wear and tear of joints, leading to pain and reduced mobility.

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Systemic Lupus

Lupus is a systemic autoimmune disease affecting multiple organs and connective tissues.

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Dentist's Role in Rheumatology

Oral manifestations, treatment complications, early disease presentation, and reflection of disease activity.

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RA Joint Swelling Cause

Inflammation of the synovial membrane causes joints to become swollen and painful.

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RA Joint Deformities

RA can cause deformities like ulnar deviation, boutonniere, and swan neck deformities.

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RA Diagnostic Blood Tests

Blood tests including rheumatoid factor and anti-CCP aid RA diagnosis, but negative results don't rule it out.

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RA General Symptoms

RA can cause general symptoms like fever, low appetite, malaise, and weakness.

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RA Neurological impact

Extra-articular symptom of reduced cognitive function and fatigue which could be neurological

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RA Sjogren's Syndrome

Exocrine gland symptoms as an extra-articular manifestation -- also known as sicca syndrome

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RA Cardiovascular Risks

Increased risk of stroke/MI and atherosclerosis are cardiovascular extra-articular symptoms of RA.

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RA Treatment Goals

Drug therapy's main aim is the reduction of symptoms, inflammation suppression, and limit joint damage.

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Pericarditis

Inflammation of the pericardium, causing chest pain.

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Endocarditis (LSE)

Inflammation of the endocardium, the inner lining of the heart, sometimes with Libman-Sacks Endocarditis (LSE).

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Lupus Nephritis

Kidney inflammation, often with protein or blood in the urine.

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SOAP BRAIN MD

A helpful memory aid to recall the 11 diagnostic criteria for SLE.

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Serositis

Inflammation of serous membranes (e.g., pleura, pericardium).

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SLE Diagnosis

Meeting four or more of the American College of Rheumatology's 11 criteria.

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Full Blood Count

Measures for leukopenia, anemia, and thrombocytopenia.

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Behcet's Disease

Systemic vasculitis of unknown cause that affects veins and arteries, leading to recurrent oral and genital ulcers, eye disease, skin lesions and joint pain.

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Aphthous Ulcers (Behcet's)

Painful, round, well-defined oral ulcers that heal without scarring.

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Methotrexate-Induced Oral Mucositis

Inflammation of the oral mucosa and ulcers, often dose-dependent.

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Systemic Sclerosis

Rare multisystem disease characterised by excessive collagen production, affecting the skin and internal organs.

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Microangiopathy (Systemic Sclerosis)

Disease of small blood vessels leading to Raynaud's phenomenon, digital ulceration, and telangiectasia.

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Perioral Furrowing (Systemic Sclerosis)

Thickening of the skin around the mouth leading to deep lines.

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Rheumatology - Dental Impact

Dental complications are common and affects the patient's quality of life and ability to maintain oral hygiene.

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TMJ Disease

Umbrella term for muscular disorders, bone changes, ankylosis, degeneration, and functional limitations affecting the jaw.

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Sjogren's Syndrome in RA

Sjögren's syndrome affecting exocrine glands (lacrimal and salivary).

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RA Impact on TMJ

Limited mouth opening or trismus due to RA affecting the temporomandibular joint.

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Lupus Erythematosus Definition

Inflammation to connective tissues which can be either Systemic (SLE) or Discoid (DLE).

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Cause of SLE

Autoimmune nature, believed to be a combination of genetics and environmental triggers.

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SLE Symptoms

Mimics other conditions, with a large range of signs and symptoms.

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Disease-Modifying Anti-Rheumatic Drugs (DMARDs)

Modify the whole immune system, primary treatment for RA

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SLE Oral Manifestations

Oral lesions/ulcers seen in many SLE patients.

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Sjogren's Syndrome & SLE

Condition often associated with SLE, causing dry mouth.

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Decreased Manual Dexterity & SLE

Difficulty performing manual tasks, common in SLE patients.

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Hydroxychloroquine & Oral Lichenoid Reactions

Can trigger lichenoid reactions.

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Corticosteroids & Oral Ulcerations

Ulcerations due to anaemia

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Medication-Related Osteonecrosis of the Jaw (MRONJ)

A rare condition involving exposed bone in the jaw, linked to certain medications.

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MRONJ Symptoms

Delayed healing, pain, infection, numbness, and exposed bone may occur.

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Study Notes

Rheumatoid Arthrits

  • Often worse in the mornings, after a period of inactivity
  • Lasts more than an hour
  • Similar to osteoartitis, but stiffness in OA lasts less

Extra-Articular Symptoms of Rheumatoid Arthrits

  • Involve neurological fatigue, and reducted cognitive function
  • Patients will suffer from secondary Sjorgen's disease

Cardiovascular RA risks

  • One will acquire increased risk of atherosclerosis
  • Risk of stroke/MI is higher in these paitents
  • Paitents will often suffer from Anaemia
  • Scleritis can be seen in the eye
  • There is a risk of Adrenal crisis
  • Consider Chlorhexidine or Difflam

Management

  • Should be done: if extraction is indicated, one should explore all alternatives where teeth could potentially be retained
  • Discuss the risks and benefits associated with treatment with the patient prior
  • the treatment as clinically indicated
  • Do not prescribe antibiotic/antiseptic

Treatment for GCA

  • If sight is lost, it is a serious complication
  • and often pernament

DMARDS Description

  • DMARDS will limit progressive joint damage
  • An Anti-metabolite will limit mucositis
  • Adalimumab is used as treatment, and often from injections

Anti-angiogenic drugs

  • Anti-angiogenic drugs target processes by which new blood vessels are formed and are used in cancer treatment to restrict tumour vascularisation
  • Such as VEGF vascular endothelial growth factor inhibitors – bevacizumab and aflibercept
  • and RTK receptor tyrosine kinase inhibitors - Sunitinib

Bisphosphonate Duration Effects

  • Risk increases with the cumulative dose of the drug increases
  • Longer than 5 years of bisphosphonate medication, higher the risk

Other Meds

  • Chronic systemic glucocorticoid use will increase the risk of MRONJ
  • Anti-angiogenic drugs + antiresorptive drugs together also increase the risk of MRONJ
  • If osteolysis extends to the inferior border of the mandible/sinus floor surgery may be needed

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