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A CBCT Investigation of the Association between Sella-Turcica Bridging and Maxillary Palatal Canine Impaction.

ABSTRACT: To investigate the association between unilateral/bilateral maxillary canine impaction and sella-turcica bridging using CBCT imaging.This retrospective comparative study analyzed 76 CBCT images of the craniofacial complex including sella-turcica. The impacted cuspid group consisted of thirty-eight subjects (7 males, 31 females; mean age, 14.6 ± 3.2 years) diagnosed with unilateral (left n = 14, right n = 11) or bilateral (n = 13) palatal canine impaction. The control group included thirty-eight subjects matched by sex (7 males, 31 females; mean age, 19.5 ± 3.6 years) with no impaction. Multinomial logistic regression analysis was used to determine the association between unilateral/bilateral canine impaction and right and left sella-turcica bridging.The prevalence of sella-turcica bridging was 59.3% and 50% in the impacted canine and control groups, respectively. Although the odds for unilateral canine impaction were increased in the right and left sella-turcica bridging groups compared to the controls, the difference was not statistically significant. The risk of bilateral impaction was different between the two sides of sella-turcica bridging, but, again, the findings were not statistically significant.Contrary to previous 2D studies, there is no statistically significant association between unilateral/bilateral palatal canine impaction and sella-turcica bridging when using 3D CBCT.

SUBMITTER: Ortiz PM

PROVIDER: S-EPMC5842722 | biostudies-other | 2018

REPOSITORIES: biostudies-other

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A CBCT Investigation of the Association between Sella-Turcica Bridging and Maxillary Palatal Canine Impaction.

Ortiz Pamela M PM Tabbaa Sawsan S Flores-Mir Carlos C Al-Jewair Thikriat T

BioMed research international 20180222

<h4>Objectives</h4>To investigate the association between unilateral/bilateral maxillary canine impaction and sella-turcica bridging using CBCT imaging.<h4>Methods</h4>This retrospective comparative study analyzed 76 CBCT images of the craniofacial complex including sella-turcica. The impacted cuspid group consisted of thirty-eight subjects (7 males, 31 females; mean age, 14.6 ± 3.2 years) diagnosed with unilateral (left <i>n</i> = 14, right <i>n</i> = 11) or bilateral (<i>n</i> = 13) palatal ca ...[more]

PMID: 29682544

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Project description:BackgroundOrthodontic implants have found widespread use as means of maximum skeletal anchorage in fixed orthodontic treatment, their optimal insertion location in the hard palate, however, is still controversial. The aim of this study was therefore to assess mean bone height across the hard palate and possible age- and sex related differences to identify the most favourable location according to maximum bone height, optimizing primary stability and survival of inserted orthodontic implants.MethodsIn this retrospective cross-sectional study, maxillary pretreatment CBCT scans of 180 healthy orthodontic patients (95♀, 85♂, age 8-40 years) were analysed with regard to vertical palatal bone height in the midpalatal area at 88 validated points distanced 2 mm from each other forming a grid of 0-14 mm posterior to the incisive foramen and 10 mm lateral of the midpalatal suture. Differences in bone height regarding sex and topographical location were assessed by three-way ANOVA.ResultsIn general, the midpalatal suture as well as the anterior-lateral palatal region showed distinctly higher mean palatal bone height with its maximum 4 mm posterior of the incisive foramen, whereas bone height was limited at the posterior region of the midpalatal suture. Women generally had significantly decreased palatal bone height compared to men at all measurement points. Higher age was associated with a decrease of bone height in the anterior and posterior lateral palatal region and the median palatal raphe with significant age differences.ConclusionsThe midpalatal suture as well as the anterior lateral palate seem to be most suitable for the insertion of orthodontic implants. Palatal bone height, however, was found to be sex- and age-specific, thus sex- and age-related differences should be taken into account, particularly regarding implant length. The ideal insertion site in the palate with sufficient bone height for orthodontic implants is 0-8 mm (men) or 0-6 mm (women) posterior to the incisive foramen and 10 mm lateral to the midpalatal suture.Trial registraionThis study has been registered and approved by the Ethics Committee of the University of Witten/Herdecke, Germany (12/2016).

Dataset Information

A CBCT Investigation of the Association between Sella-Turcica Bridging and Maxillary Palatal Canine Impaction.

Publications

A CBCT Investigation of the Association between Sella-Turcica Bridging and Maxillary Palatal Canine Impaction.

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