Malocclusion and Orthodontic Therapy

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What is the primary irritant that initiates gingival inflammation, pocket formation, and provides sheltered areas for plaque and bacteria accumulation?

Nonmineralized plaque on calculus surfaces

What is the role of Carbohydrate-Protein in the formation of calculus?

Carbohydrate-Protein removes calcium from the saliva through chelation and binds with it to form nuclei that induce deposition of minerals.

How do overcontoured restorations and open contacts contribute to periodontal tissue deterioration?

They impede self-cleaning mechanisms, promoting plaque buildup.

What is a common error in restorative dentistry that can cause lacerations to the gingiva, resulting in mechanical trauma and inflammation?

Improper use of rubber dam clamps, matrix bands, and burs Signup and view all the answers

How do the design and use of removable partial dentures contribute to periodontal tissue deterioration?

Wearing them continuously (day and night) may lead to increased plaque formation compared to those worn only during the day. Signup and view all the answers

What is an example of an iatrogenic factor that contributes to periodontal tissue deterioration?

Inadequate dental procedures Signup and view all the answers

What is the role of calculus in gingival inflammation, and how does it affect plaque removal?

Calculus does not directly cause gingival inflammation but provides a fixed nidus for plaque accumulation, making plaque removal difficult by keeping it close to the gingiva. Signup and view all the answers

What is the composition of materia alba, and how does it affect the gingiva?

Materia alba is a soft, sticky deposit consisting of microorganisms, desquamated epithelial cells, leukocytes, and salivary proteins/lipids, and its irritating effect on the gingiva is caused by bacteria and their products. Signup and view all the answers

How is calculus classified based on its location, and what are the corresponding names?

Calculus is classified into supra and subgingival calculus based on its location, with supragingival calculus also known as salivary calculus and subgingival calculus also known as seruminal calculus. Signup and view all the answers

What is the average daily increment in calculus formation, and what does it depend on?

The average daily increment in calculus formation is from 0.10% to 0.15% of dry weight calculus, and it depends on the rate of accumulation, which can be classified into non, slight, moderate, and heavy calculus formers. Signup and view all the answers

What is the characteristic appearance of supragingival calculus, and where is it commonly found?

Supragingival calculus appears white or whitish yellow, and it is commonly found on the buccal surfaces of maxillary molars opposite Stenson's duct and lingual surfaces of mandibular anterior teeth opposite Wharton's duct and Bartholin's duct. Signup and view all the answers

How does calculus formation impact restorative dentistry and orthodontic therapy, and what are the potential iatrogenic factors?

Calculus formation can compromise the success of restorative dentistry and orthodontic therapy by creating a conducive environment for oral diseases, and iatrogenic factors such as inadequate oral hygiene instructions and infrequent recalls can contribute to its formation. Signup and view all the answers

What is the challenge posed by malocclusion in periodontal therapy?

Makes plaque control more challenging Signup and view all the answers

What is a common issue associated with orthodontic therapy in relation to periodontal therapy?

Plaque retention due to appliances and direct injury to the gingiva Signup and view all the answers

How can habitual behaviors contribute to periodontal problems?

Trauma from improper brushing, fingernail trauma, or oral jewelry Signup and view all the answers

What is a potential complication of radiation therapy for periodontal tissues?

Ischemia, mucositis, fibrosis, and xerostomia Signup and view all the answers

How can tobacco use contribute to periodontal problems?

Associated with greater attachment loss, bone loss, and increased calculus formation and number of deep pockets Signup and view all the answers

What is a potential complication of extraction of impacted third molars for periodontal tissues?

Vertical bone loss and food impaction Signup and view all the answers