title: Comparison of dentoalveolar protrusion values in Moroccans and other populations.
abstract: The aim of this retrospective study was to evaluate bimaxillary protrusion among Moroccans and to compare the Moroccan population with other Arabic, Caucasian, and Mediterranean populations. Cephalometric radiographs of 102 Moroccan adult university students (73 females and 29 males, mean age: 21 years 6 months +/- 1 year 6 months) with a normal occlusion were traced. Fifteen measurements concerning the upper and lower incisors, upper and lower lips, and the Frankfort to mandibular plane angle were assessed. Statistical analysis of the data was undertaken using independent t-tests. Eight angular and six linear measurements were statistically significantly different compared with Caucasian cephalometric norms (P < 0.001). Significant differences were observed compared with other adult Arabic populations (Palestinians and Saudis) and with Turkish Anatolian adults. Relative to Caucasian cephalometric norms, Moroccans showed bimaxillary protrusion and, therefore, these norms cannot be applied to Moroccan faces. In general, there was a great similarity in incisor position between the Moroccan and Saudi populations.
authors.affiliation: Department of Orthodontics and Dentofacial Orthopedics, Dental School of Rabat, Mohamed V-Souissi University, Morocco. lahlou@fmdrabat.ac.ma
authors.forename: Kenza
authors.initials: K
authors.lastname: Lahlou
authors.forename: Asmae
authors.initials: A
authors.lastname: Bahoum
authors.forename: Myriam Boukili
authors.initials: MB
authors.lastname: Makhoukhi
authors.forename: El Houssaine
authors.initials: el H
authors.lastname: Aalloula
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000033:anatomy & histology*; D002508:Cephalometry / Q000379:methods*; D002680:Chin / Q000033:anatomy & histology; D003766:Dental Occlusion; D004424:Ear Canal / Q000033:anatomy & histology; D005006:Ethnicity; D005145:Face / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology*; D008046:Lip / Q000033:anatomy & histology; D008297:Male; D008334:Mandible / Q000033:anatomy & histology*; D008437:Maxilla / Q000033:anatomy & histology*; D019083:Mediterranean Region; D008877:Middle East; D009018:Morocco; D009295:Nasal Bone / Q000033:anatomy & histology; D009915:Orbit / Q000033:anatomy & histology; D012189:Retrospective Studies; D012529:Saudi Arabia; D012658:Sella Turcica / Q000033:anatomy & histology; D012737:Sex Factors; D044465:White People; D055815:Young Adult