Effect of Tooth Agenesis on Mandibular Morphology and Position

Agnieszka Jurek, Dariusz Gozdowski, Ewa Monika Czochrowska and Małgorzata Zadurska
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Agnieszka Jurek: Department of Orthodontics, Medical University of Warsaw, 02-091 Warsaw, Poland
Dariusz Gozdowski: Department of Biometry, Warsaw University of Life Science, 02-787 Warsaw, Poland
Ewa Monika Czochrowska: Department of Orthodontics, Medical University of Warsaw, 02-091 Warsaw, Poland
Małgorzata Zadurska: Department of Orthodontics, Medical University of Warsaw, 02-091 Warsaw, Poland

IJERPH, 2021, vol. 18, issue 22, 1-11

Abstract: Congenital missing teeth (OMIM #106600) is the most common dental abnormality. The aim of the study was to evaluate the effects of tooth agenesis on the total mandibular length, length of the mandibular body and alveolar process, and the mandibular anteroposterior position. The material was obtained from the Department of Orthodontics, Medical University of Warsaw. The study group included 116 patients aged 9–18 years with a congenital absence of at least two permanent tooth buds in the maxilla and/or mandible (mean: 6.2 teeth missing/patient). All patients were Caucasians: 68 (59%) females and 48 (41%) males. The control group included 115 patients without tooth agenesis matched with the age and gender of the study group. A cephalometric analysis was performed, and it was focused on assessing anteroposterior mandibular measurements. This assessment was based on 17 measurements (12 linear and 5 angular). Statistical analysis of the cephalometric measurements between the study group and the control group showed significant changes regarding selected mandibular measurements. Tooth agenesis does not affect the total length of the mandible and the length of the mandibular body, but it might reduce the length of the mandibular arch length and result in a more retrusive mandibular position.

Keywords: agenesis; mandible; cephalometry (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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