Mandibular bone remodelling in adults: evaluation of panoramic radiographs

Dutra, Vinícius; Yang, Jie; Devlin, Hugh; Susin, Cristiano

doi:10.1259/dmfr/17685970

Cited by 65 publications

(76 citation statements)

References 12 publications

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“…The mean increase in the value of the antegonial depth from the dentulous state to partially dentulous state and then to completely edentulous state was 0.18 mm, 0.24 mm and 0.20 mm, 0.14 mm respectively for males and females. With respect to relation with dentition status, present study showed similar results as were shown by Dutra et al (5). Edentulous individuals had smaller mean antegonial angle than partially dentate group, who had smaller value than completely dentulous individuals while edentulous individuals had greater mean antegonial depth than partially dentate group, who had greater value than dentulous individuals.…”

Section: Discussionsupporting

confidence: 90%

“…Kolodziej et al also suggested that antegonial notch depth, when extreme in magnitude, might be used to predict facial growth (4). Morphological alterations in the antegonial region have been researched thoroughly in young individuals but little research has been done for this aspect in adults (5). The present study was conducted to better understand the alteration in the antegonial region and to correlate with various parameters like age, sex and dentition status.…”

Section: Introductionmentioning

confidence: 88%

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Remodeling of the antegonial angle region in the human mandible: A panoramic radiographic cross-sectional study

Ghosh¹,

Vengal²,

Pai³

et al. 2010

Med Oral

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Objectives: This study analyzed changes in the antegonial region in relation to age, gender, and dental status. Study design: A total of one thousand patients (five hundred males and five hundred females), who were prescribed panoramic radiograph for various purposes were included in the study. The patients were categorized according to age, gender and dentition status. Panoramic radiographs were traced and antegonial angles and depths were measured. Results: A trend of decrease in the antegonial angle and increase in antegonial depth with age was observed in both males and females. Furthermore there were differences between right and left side antegonial angle and depth, with left side angle more than right and right side depth more than left. There was a significant decrease in the values of antegonial angle and significant increase in the values of antegonial depth as the dentition status changed from completely dentulous to partially dentulous and from partially dentulous to completely edentulous state. Conclusions: The antegonial angle decreases with the advancing age and thereby increases the antegonial depth. Similar trends are seen when teeth are lost. Furthermore there is an inherent asymmetry in the antegonial region in right and left side.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 88%

Remodeling of the antegonial angle region in the human mandible: A panoramic radiographic cross-sectional study

Ghosh¹,

Vengal²,

Pai³

et al. 2010

Med Oral

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“…13,14,29 Measurements of MI, PMI, and AD have already been used and have been validated in the scientific literature. 10,[17][18][19]29 In the postmenopausal subjects in this study, the values of both MI (p = 0.0054) and AD (p < 0.0001) were lower in the HIV group compared with those in the control group.…”

mentioning

confidence: 49%

“…• Antegonial Depth (AD) 18 measures the distance along the perpendicular line from the deepest point of the concave antegonial notch depth to the lower cortical line that is parallel to the edge of the mandible (Figure 1). …”

Section: Resultsmentioning

confidence: 99%

“…10,12,17,29 Due to the lack of related studies involving HIV patients, we do not have sufficient data with which to compare our results for the radiomorphometric indexes of the HIV group, but other studies with HIV-negative patients have found a decrease in the AD. 18,30 However, a recent study reported no significant differences in the mean AD or in the gonial angles compared to the bone mineral density values of the lumbar spine and hip. 29 …”

mentioning

confidence: 94%

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Evaluation of bone alterations in the jaws of HIV-infected menopausal women

Caputo

Traversa-Caputo²,

Costa³

et al. 2013

Braz. oral res.

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The advent of highly active antiretroviral therapy (HAART) has caused a reduction in mortality, thus contributing to an increase in the number of women with HIV/AIDS who reach the climacteric period, experience decline in ovarian function, and develop complications of viral infection and HAART, which can accelerate bone loss. The aim of this study was to detect possible alterations in the jaws of HIV-infected women by panoramic radiography. The study comprised a total of 120 women above 40 years of age who were divided into the following two groups: women who are HIV positive (Group I) and women with no known HIV infection (Group II). Measurement of the following three radiomorphometric indexes was performed by panoramic radiography: Mental Index (MI), Panoramic Mandibular Index (PMI) and Antegonial Depth (AD). A total of 70% of women in the control group and 50% of women in the HIV group were in the postmenopausal period, and the average values of both MI (p = 0.0054) and AD (p < 0.0001) for this period were lower in the HIV group than in the control group. For patients who were in the premenopausal period, the average AD was lower in the HIV group than in the control group (p = 0.0003). Despite the difference in the average age between groups, greater bone resorption in the mandible was found in the group of HIV-positive women.

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Loss of molar occlusion and mandibular morphology in adults in an ancient human population consuming a coarse diet

Mays

2013

American J Phys Anthropol

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The purpose of the study is to investigate the link between number of molar teeth retained in occlusion and mandibular morphology in adults in an ancient, high dental wear human population. The study material comprises skeletons from Mediaeval Wharram Percy, England (N = 50 female, 69 male adults). It was hypothesized that adults retaining fewer occluding molars would show reduction in mandibular dimensions, particularly in the ascending ramus and gonial regions where the main muscles of mastication have their insertions. Molar occlusal status is assessed using the concept of functional units. Mandibular morphology is assessed using a suite of ten linear measurements plus the mandibular angle. Results show no evidence for any association between number of molars retained in occlusion and mandibular angle. There was an association between mandibular size and number of molars retained in occlusion, with smaller mandibular dimensions in those retaining fewer occluding molars. Some measurements were affected more than others so that there was also some shape alteration. Alteration of mandibular dimensions was more clearly demonstrable in females than in males. Only in females could significant reduction in the ascending ramus and gonial regions be demonstrated. Reasons for the apparent difference in response to loss of molar occlusion between male and female mandibles are unclear, but sex differences in bony metabolism mediated by hormonal factors may be implicated. Results suggest that care should be exercised when including mandibles from individuals showing loss of molar occlusion in morphological studies.

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Mandibular bone remodelling in adults: evaluation of panoramic radiographs

Abstract: The gonial angle did not show any change with gender, age and dental status whereas the antegonial region had a resorptive pattern in the edentulous mandible. The morphology of the antegonial region was influenced by gender and dental status.

Cited by 65 publications

References 12 publications

Remodeling of the antegonial angle region in the human mandible: A panoramic radiographic cross-sectional study

Remodeling of the antegonial angle region in the human mandible: A panoramic radiographic cross-sectional study

Evaluation of bone alterations in the jaws of HIV-infected menopausal women

Loss of molar occlusion and mandibular morphology in adults in an ancient human population consuming a coarse diet

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