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Dental arch dimensions in oligodontia patients

Lookup NU author(s): Dr Khaled Khalaf, Dr Ross Hobson


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INTRODUCTION: The aim of this study was to compare the dental arch sizes in a group of oligodontia patients with a group of age- and sex-matched untreated Class I control patients. METHODS: Dental casts were measured of 50 oligodontia patients and 50 untreated Class I patients between 8 and 16 years old. For each subject, dental arch length and width parameters were measured in the maxillary and mandibular arches with digital calipers. The various dental arch parameters were compared between the 2 groups by using ANOVA. RESULTS: The mean age of the subjects was 12.5 years. The average number of teeth missing in the oligodontia group was 11. The mean maxillary and mandibular arch lengths in the oligodontia group were reduced by 4.40 and 2.80 mm, respectively, when compared with the control group. The intercanine widths were reduced in the oligodontia group compared with the control group by 2.82 mm in the maxillary arch and 2.70 mm in the mandibular arch. The intermolar widths of the maxillary and mandibular arches in the oligodontia group were reduced by 3.40 and 1.80 mm, respectively, compared with the control group. These differences were statistically significant (P

Publication metadata

Author(s): Bu X, Khalaf K, Hobson RS

Publication type: Article

Publication status: Published

Journal: American Journal of Orthodontics and Dentofacial Orthopedics

Year: 2008

Volume: 134

Issue: 6

Pages: 768-772

ISSN (print): 0889-5406

ISSN (electronic): 1097-6752

Publisher: Mosby, Inc.


DOI: 10.1016/j.ajodo.2007.03.029


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