Accuracy of orthopantomograms in the assessment of implant position following alloplastic temporomandibular joint replacement

Mian, Mustafa; Fink, Sarah; Ackland, David C.; Wang, Nathan; Dimitroulis, George

doi:10.1007/s10006-020-00842-x

Cited by 3 publications

(2 citation statements)

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“…While 2D imaging techniques like orthopantomograms are more accessible, 8,9 they suffer from inherent inaccuracies such as distortions, varying magnifications, and overlapping. 15 To overcome these limitations, conventional 3D computed tomography (CT) has been employed 16 ; however, this approach is considerably more expensive and exposes patients to higher radiation levels. Consequently, in recent years, techniques such as 3D cone beam computed tomography (CBCT) have gained popularity due to their high accuracy while minimizing patient exposure to excessive radiation doses.…”

Section: Introductionmentioning

confidence: 99%

“…The studies conducted on dry skulls suffer from a lack of information regarding the age and gender of the samples, which presents a challenge in interpreting their results. While 2D imaging techniques like orthopantomograms are more accessible, 8,9 they suffer from inherent inaccuracies such as distortions, varying magnifications, and overlapping 15 . To overcome these limitations, conventional 3D computed tomography (CT) has been employed 16 ; however, this approach is considerably more expensive and exposes patients to higher radiation levels.…”

Section: Introductionmentioning

confidence: 99%

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Three‐dimensional evaluation of mandibular lingula: Comparisons of skeletal angle classifications and growth patterns

Sayahpour,

Nucci,

Eslami

et al. 2024

Orthod Craniofacial Res

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ObjectivesThis study aimed to evaluate the position of the mandibular lingula (ML) in adult patients (aged between 18 and 35 years old) with different skeletal and growth patterns using cone‐beam computed tomography (CBCT).DesignCross‐sectional.SettingDentistry department of University.SubjectsSubjects comprised CBCT images of 150 adult patients, including 300 rami.Methods and MaterialsIn total, 150 CBCT aged between 18 and 35 were selected and divided into three main groups of 50 samples based on their skeletal relationships (classes I, II and III). Patients were subdivided based on their growth pattern (vertical vs. horizontal), resulting in 25 samples per subgroup. Distances between the mandibular lingula and occlusal plane (ML‐OP), sigmoid notch (ML‐SN), external oblique ridge (ML‐EOR), internal oblique ridge (ML‐IOR), posterior border of the ramus (ML‐PBR), inferior border of the ramus (ML‐IBR), and horizontal and vertical distances to the mandibular foramen (ML‐hMF and ML‐vMF). One‐way ANOVA variance analysis was employed to compare different angle classifications, and Bonferroni analysis was used for multiple comparisons. The Student's t‐test was also used to compare growth patterns within each main group and genders within the subgroup.ResultsThe study revealed statistically significant differences in the position of the mandibular lingula between different angle classifications, growth patterns, and genders. Class II samples showed a more anterior position of the ML, whereas Class III samples displayed a more posterior position of the ML. Patients with horizontal growth patterns and Angle Class III had a more posteriorly positioned ML. Gender differences were observed, particularly in Class I and Class III classifications, suggesting that gender may influence the variability of ML position in these specific classifications.ConclusionThe position of the mandibular lingula showed high variability among individuals with different angle classifications, growth patterns and genders.

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Section: Introductionmentioning

confidence: 99%