Podcast
Questions and Answers
What is the primary purpose of buttressing bone formation?
What is the primary purpose of buttressing bone formation?
Which of the following best describes 'central buttressing bone'?
Which of the following best describes 'central buttressing bone'?
Which type of bony contoured formation is referred to as 'Lipping'?
Which type of bony contoured formation is referred to as 'Lipping'?
What percentage of human skulls demonstrate the presence of palatal exostoses?
What percentage of human skulls demonstrate the presence of palatal exostoses?
Signup and view all the answers
What classification does 'buccal exostoses' primarily fall under?
What classification does 'buccal exostoses' primarily fall under?
Signup and view all the answers
In the context of osseous defect classification, what is a ledge?
In the context of osseous defect classification, what is a ledge?
Signup and view all the answers
What percentage of individuals exhibit buccal exostoses?
What percentage of individuals exhibit buccal exostoses?
Signup and view all the answers
Who first proposed the concept of buttressing bone formation due to occlusion trauma?
Who first proposed the concept of buttressing bone formation due to occlusion trauma?
Signup and view all the answers
Which of the following terms refers to bone formation on the external surface?
Which of the following terms refers to bone formation on the external surface?
Signup and view all the answers
What is a defining characteristic of exostoses?
What is a defining characteristic of exostoses?
Signup and view all the answers
What defines a fenestration in dental terms?
What defines a fenestration in dental terms?
Signup and view all the answers
Which factor is NOT typically associated with dehiscence?
Which factor is NOT typically associated with dehiscence?
Signup and view all the answers
Which osseous defect classification is most common in the posterior maxillary region?
Which osseous defect classification is most common in the posterior maxillary region?
Signup and view all the answers
Which characteristic is essential to understand exostoses?
Which characteristic is essential to understand exostoses?
Signup and view all the answers
What is the key difference between suprabony and infrabony defects?
What is the key difference between suprabony and infrabony defects?
Signup and view all the answers
Which type of osseous crater does NOT occur due to the loss of interdental bone?
Which type of osseous crater does NOT occur due to the loss of interdental bone?
Signup and view all the answers
Which of the following statements about buttressing bone formation is incorrect?
Which of the following statements about buttressing bone formation is incorrect?
Signup and view all the answers
When might a periodontal surgeon find a dehiscence?
When might a periodontal surgeon find a dehiscence?
Signup and view all the answers
What is a significant characteristic of reversed architecture defects?
What is a significant characteristic of reversed architecture defects?
Signup and view all the answers
What type of defects do fenestrations typically cause in periodontal surgery outcomes?
What type of defects do fenestrations typically cause in periodontal surgery outcomes?
Signup and view all the answers
What percentage of all teeth are affected by alveolar margin lippings in exostoses?
What percentage of all teeth are affected by alveolar margin lippings in exostoses?
Signup and view all the answers
Which type of exostosis is more commonly associated with a higher percentage of individuals?
Which type of exostosis is more commonly associated with a higher percentage of individuals?
Signup and view all the answers
What is a characteristic feature of buccal exostoses?
What is a characteristic feature of buccal exostoses?
Signup and view all the answers
What is a potential cause of exostoses suggested by postulated theories?
What is a potential cause of exostoses suggested by postulated theories?
Signup and view all the answers
What histological feature is primarily associated with exostoses?
What histological feature is primarily associated with exostoses?
Signup and view all the answers
Which of the following statements about palatal tori is true?
Which of the following statements about palatal tori is true?
Signup and view all the answers
What surgical technique is involved in the removal of the torus palatinus?
What surgical technique is involved in the removal of the torus palatinus?
Signup and view all the answers
What is the prevalence rate for torus formation among adults?
What is the prevalence rate for torus formation among adults?
Signup and view all the answers
What features differentiate exostoses from tori?
What features differentiate exostoses from tori?
Signup and view all the answers
Which classification system identifies osseous defects as suprabony and infrabony defects?
Which classification system identifies osseous defects as suprabony and infrabony defects?
Signup and view all the answers
What characterizes infrabony defects according to Panos & Toneiti's classification?
What characterizes infrabony defects according to Panos & Toneiti's classification?
Signup and view all the answers
Which type of osseous crater is defined as having a depth of 5 mm or more?
Which type of osseous crater is defined as having a depth of 5 mm or more?
Signup and view all the answers
What is the estimated percentage of osseous craters that occur in the mandibular region?
What is the estimated percentage of osseous craters that occur in the mandibular region?
Signup and view all the answers
Which feature is characteristic of the interdental area prone to craters formation?
Which feature is characteristic of the interdental area prone to craters formation?
Signup and view all the answers
According to Ochsenbein, what defines a shallow crater?
According to Ochsenbein, what defines a shallow crater?
Signup and view all the answers
What type of defect is categorized as a furcation involvement?
What type of defect is categorized as a furcation involvement?
Signup and view all the answers
Which type of bone defect is known to always be above the alveolar crest?
Which type of bone defect is known to always be above the alveolar crest?
Signup and view all the answers
What classification is used to identify vertical classifications of furcation involvement?
What classification is used to identify vertical classifications of furcation involvement?
Signup and view all the answers
What is the main role of the vascular pattern in craters formation?
What is the main role of the vascular pattern in craters formation?
Signup and view all the answers
Buttressing bone formation occurs only in response to light occlusal forces.
Buttressing bone formation occurs only in response to light occlusal forces.
Signup and view all the answers
Peripheral buttressing bone formation refers to changes occurring within the jaw.
Peripheral buttressing bone formation refers to changes occurring within the jaw.
Signup and view all the answers
Buccal exostoses are present in approximately 77% of all individuals.
Buccal exostoses are present in approximately 77% of all individuals.
Signup and view all the answers
Ledges are defined as enlargements of bone that project outward.
Ledges are defined as enlargements of bone that project outward.
Signup and view all the answers
The concept of buttressing bone formation was first proposed in 1985.
The concept of buttressing bone formation was first proposed in 1985.
Signup and view all the answers
Exostoses are uniform in size and shape across all individuals.
Exostoses are uniform in size and shape across all individuals.
Signup and view all the answers
The presence of marginal bony lippings is an indication of underlying osseous changes.
The presence of marginal bony lippings is an indication of underlying osseous changes.
Signup and view all the answers
Osseous craters are defined as having a depth less than 5 mm.
Osseous craters are defined as having a depth less than 5 mm.
Signup and view all the answers
Suprabony defects are always located above the alveolar crest.
Suprabony defects are always located above the alveolar crest.
Signup and view all the answers
Infrabony defects occur when there is a loss of interdental bone.
Infrabony defects occur when there is a loss of interdental bone.
Signup and view all the answers
Suprabony defects are classified as defects that occur above the alveolar crest.
Suprabony defects are classified as defects that occur above the alveolar crest.
Signup and view all the answers
According to Panos & Toneiti's classification, infrabony defects are further categorized into three types based on the number of walls.
According to Panos & Toneiti's classification, infrabony defects are further categorized into three types based on the number of walls.
Signup and view all the answers
Osseous craters can make up nearly half of all osseous defects but account for only a small percentage of mandibular defects.
Osseous craters can make up nearly half of all osseous defects but account for only a small percentage of mandibular defects.
Signup and view all the answers
Ochsenbein divided bony craters into types based solely on their width.
Ochsenbein divided bony craters into types based solely on their width.
Signup and view all the answers
Horizontal classification of furcation involvement includes Class I, Class II, and Class III.
Horizontal classification of furcation involvement includes Class I, Class II, and Class III.
Signup and view all the answers
The interdental bone's shape contributes significantly to the ease or difficulty of maintaining oral hygiene.
The interdental bone's shape contributes significantly to the ease or difficulty of maintaining oral hygiene.
Signup and view all the answers
Craters are less prevalent in posterior segments compared to anterior segments.
Craters are less prevalent in posterior segments compared to anterior segments.
Signup and view all the answers
Exostoses are formed solely due to regions of bone trauma without any other contributing factors.
Exostoses are formed solely due to regions of bone trauma without any other contributing factors.
Signup and view all the answers
Deep craters are defined as having a depth of 5 mm or more.
Deep craters are defined as having a depth of 5 mm or more.
Signup and view all the answers
Vertical classification of furcation involvement includes parameters such as the degree of bone loss.
Vertical classification of furcation involvement includes parameters such as the degree of bone loss.
Signup and view all the answers
Fenestrations are characterized by denuded areas where the root surface is covered only by periosteum and overlying gingiva.
Fenestrations are characterized by denuded areas where the root surface is covered only by periosteum and overlying gingiva.
Signup and view all the answers
Reversed architecture defects result from the loss of both facial and lingual bone plates simultaneously.
Reversed architecture defects result from the loss of both facial and lingual bone plates simultaneously.
Signup and view all the answers
Dehiscences are typically more common in posterior teeth than in anterior teeth.
Dehiscences are typically more common in posterior teeth than in anterior teeth.
Signup and view all the answers
The occurrence of fenestrations and dehiscences complicates the outcome of periodontal surgery.
The occurrence of fenestrations and dehiscences complicates the outcome of periodontal surgery.
Signup and view all the answers
Exostoses are often associated with significant bone loss and lead to major structural changes in the oral cavity.
Exostoses are often associated with significant bone loss and lead to major structural changes in the oral cavity.
Signup and view all the answers
Bone plate thickness is a predisposing factor for the occurrence of funnel-shaped defects.
Bone plate thickness is a predisposing factor for the occurrence of funnel-shaped defects.
Signup and view all the answers
Approximately 20% of teeth are affected by fenestrations and dehiscences.
Approximately 20% of teeth are affected by fenestrations and dehiscences.
Signup and view all the answers
Surgical removal of the torus mandibularis typically requires the use of a mono-bevel chisel for effective exostosis removal.
Surgical removal of the torus mandibularis typically requires the use of a mono-bevel chisel for effective exostosis removal.
Signup and view all the answers
Buccal exostoses occur more frequently than palatal exostoses in the human population.
Buccal exostoses occur more frequently than palatal exostoses in the human population.
Signup and view all the answers
The primary function of buttressing bone formation is to prevent occlusion trauma.
The primary function of buttressing bone formation is to prevent occlusion trauma.
Signup and view all the answers
Buccal exostoses are known to have malignant potential.
Buccal exostoses are known to have malignant potential.
Signup and view all the answers
The prevalence rate for tori formation is higher in males than in females.
The prevalence rate for tori formation is higher in males than in females.
Signup and view all the answers
Exostoses can only occur in the maxillary arch and not in the mandibular arch.
Exostoses can only occur in the maxillary arch and not in the mandibular arch.
Signup and view all the answers
Multiple exostoses can appear as several bony overgrowths on the vestibular alveolar bone.
Multiple exostoses can appear as several bony overgrowths on the vestibular alveolar bone.
Signup and view all the answers
Lingual exostoses are observed in about 50% of all individuals.
Lingual exostoses are observed in about 50% of all individuals.
Signup and view all the answers
Histologically, exostoses are defined as immature dysplastic bone.
Histologically, exostoses are defined as immature dysplastic bone.
Signup and view all the answers
Alveolar margin lippings are found in 18% of all teeth.
Alveolar margin lippings are found in 18% of all teeth.
Signup and view all the answers
The etiology of exostoses is widely agreed upon in the scientific community.
The etiology of exostoses is widely agreed upon in the scientific community.
Signup and view all the answers
Tori are more frequently observed in the maxillary arch than in the mandible.
Tori are more frequently observed in the maxillary arch than in the mandible.
Signup and view all the answers
A surgical incision for torus palatinus removal is typically made along the midline of the palate.
A surgical incision for torus palatinus removal is typically made along the midline of the palate.
Signup and view all the answers
Study Notes
Buttressing Bone Formation
- Development of thickened buccal alveolar bone occurs due to heavy occlusal forces.
- Buccal alveolar bone enlargements found in 25% of all teeth examined.
- Marginal bony lippings account for 18% of cases, while 7% demonstrate buccal exostoses.
- Initially proposed by Glickman and Smulow in 1965 as a response to occlusal trauma.
- Central buttressing bone forms within the jaw, peripheral buttressing occurs on the external surface, leading to bulging bone contours known as “Lipping”.
Bulbous Bone Contour
- Ledges represent plateau-like bone margins resulting from resorption of thickened bony plates.
Exostoses
- Exostoses are bone outgrowths of various sizes and shapes.
- Palatal exostoses prevalence is found in 40% of human skulls.
- Buccal exostoses seen in 25% of all teeth and 77% of individuals.
- Removal typically performed using a mono-bevel chisel and smoothing with a bone bur.
Fenestrations and Dehiscences
- Fenestrations are isolated areas where roots are denuded of bone but covered by periosteum and gingiva.
- Dehiscence extends the denuded area through the marginal bone, considered a more serious defect.
- Occur more frequently on facial bone than lingual surfaces, especially common in anterior teeth and often bilateral.
- Important for periodontal surgery outcomes, occurring approximately in 20% of teeth.
- Predisposing factors include prominent root contours, malpositions, and thin bony plates.
Reversed Architecture
- Loss of interdental bone alters normal architecture without loss of radicular bone.
- More prevalent in maxillae rather than mandibles.
Bone Deformities Classifications
- Classifications identified by Goldman & Cohen (1958), Glickman (1964), Karn et al (1983), Prichards (1985), and others including the Panos & Toneiti (2000) classification.
Osseous Craters
- Concave defects confined to the facial and lingual walls in interdental bones, constituting about one-third of all defects and two-thirds of mandibular defects.
- Occurrence is more common in posterior segments than in anterior segments.
- Ochsenbein's crater classification designates shallow (1-2 mm), medium (3-4 mm), and deep (5 mm or more) types.
Exostoses Etiology and Histology
- Etiology remains undetermined; potential causes include genetic, environmental factors, and masticatory hyperfunction.
- Histologically, exostoses display mature hyperplastic bone with cortical and trabecular characteristics.
- Usually are painless, self-limiting, and can contribute to periodontal conditions.
Tori
- Palatal tori mostly under 2 cm and prevalence ranges from 9% to 60%, more common than mandibular tori (5% to 40%).
- Prevalence rate for tori is 27 per 1,000 adults, with higher occurrence in females.
Surgical Techniques
- Removal procedures include an incision along the midline of the palate and mucoperiosteal flaps to access the exostosis.
- Treated by sectioning into smaller parts, using a fissure bur for effective excision.
Buttressing Bone Formation
- Development of thickened buccal alveolar bone occurs due to heavy occlusal forces.
- Buccal alveolar bone enlargements found in 25% of all teeth examined.
- Marginal bony lippings account for 18% of cases, while 7% demonstrate buccal exostoses.
- Initially proposed by Glickman and Smulow in 1965 as a response to occlusal trauma.
- Central buttressing bone forms within the jaw, peripheral buttressing occurs on the external surface, leading to bulging bone contours known as “Lipping”.
Bulbous Bone Contour
- Ledges represent plateau-like bone margins resulting from resorption of thickened bony plates.
Exostoses
- Exostoses are bone outgrowths of various sizes and shapes.
- Palatal exostoses prevalence is found in 40% of human skulls.
- Buccal exostoses seen in 25% of all teeth and 77% of individuals.
- Removal typically performed using a mono-bevel chisel and smoothing with a bone bur.
Fenestrations and Dehiscences
- Fenestrations are isolated areas where roots are denuded of bone but covered by periosteum and gingiva.
- Dehiscence extends the denuded area through the marginal bone, considered a more serious defect.
- Occur more frequently on facial bone than lingual surfaces, especially common in anterior teeth and often bilateral.
- Important for periodontal surgery outcomes, occurring approximately in 20% of teeth.
- Predisposing factors include prominent root contours, malpositions, and thin bony plates.
Reversed Architecture
- Loss of interdental bone alters normal architecture without loss of radicular bone.
- More prevalent in maxillae rather than mandibles.
Bone Deformities Classifications
- Classifications identified by Goldman & Cohen (1958), Glickman (1964), Karn et al (1983), Prichards (1985), and others including the Panos & Toneiti (2000) classification.
Osseous Craters
- Concave defects confined to the facial and lingual walls in interdental bones, constituting about one-third of all defects and two-thirds of mandibular defects.
- Occurrence is more common in posterior segments than in anterior segments.
- Ochsenbein's crater classification designates shallow (1-2 mm), medium (3-4 mm), and deep (5 mm or more) types.
Exostoses Etiology and Histology
- Etiology remains undetermined; potential causes include genetic, environmental factors, and masticatory hyperfunction.
- Histologically, exostoses display mature hyperplastic bone with cortical and trabecular characteristics.
- Usually are painless, self-limiting, and can contribute to periodontal conditions.
Tori
- Palatal tori mostly under 2 cm and prevalence ranges from 9% to 60%, more common than mandibular tori (5% to 40%).
- Prevalence rate for tori is 27 per 1,000 adults, with higher occurrence in females.
Surgical Techniques
- Removal procedures include an incision along the midline of the palate and mucoperiosteal flaps to access the exostosis.
- Treated by sectioning into smaller parts, using a fissure bur for effective excision.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on buttressing bone formation and its impact on buccal alveolar bone. This quiz covers key concepts related to the development of thickened bone in response to occlusal forces. Explore important findings and statistics relevant to dental studies.
