Research Article
Volume 20 Issue 4 - 2021
Dental Arch Dimensions in Patients with Isolated Maxillary Lateral Incisor Agenesis (Mlia)
Tamouh Kabbani1*, Yasser Rsheadat2, Helge Fischer-Brandies3 and Wolfgang Orthuber4
1Orthodontist and PhD Student, Department of Orthodontics, Faculty of Dentistry, University of Kiel, Schleswig-Holstein, Germany
2Professor Doctor and Former Head, Department of Orthodontics, Faculty of Dentistry, University of Aleppo, Syria
3Professor Doctor and Head, Department of Orthodontics, Faculty of Dentistry, University of Kiel, Schleswig-Holstein, Germany
4Orthodontist and Vice Director of the Department of Orthodontics, University of Kiel, Schleswig-Holstein, Germany
*Corresponding Author: Tamouh Kabbani, Orthodontist and PhD Student, Department of Orthodontics, Faculty of Dentistry, University of Kiel, Schleswig-Holstein, Germany.
Received: February 15, 2021; Published: March 31, 2021


Purpose: The objective of this study is to investigate the characteristics of dental arch dimensions in patients with isolated MLIA through comparing them with non-hypodontia control group and to compare the dental arch dimensions in UMLIA and BMLIA subgroups.

Material and Methods: Dental casts were taken for 60 sex-matched patients, within an age range of 12 - 15 years, only affected by unilateral or bilateral congenital absence of maxillary lateral incisors, excluding third molars, in order to measure some of traditionally used parameters and new parameters which were developed and have not been studied before, and to be compared with non-hypodontia control sample. The significance test for the differences in arch dimensions between hypodontia and non-hypodontia subjects was performed using Student t-test.

Results: Intercanine width and anterior length of maxilla were significantly reduced in the patients compared with that of the controls, p < .05. Moreover, both parameters were significantly reduced in the patients with bilateral agenesis compared with those who had unilateral agenesis of upper lateral incisors, p < .05. The Incisive Depth (new parameter) and its two divisions were significantly reduced in the MLIA group compared with the control one.

Conclusion: This study concluded that the influence of MLIA appears exclusively in the anterior section of maxilla (premaxilla) to be narrowed and shorter compared with the control group and the development of the premaxillary section in both transverse and sagittal directions decreases along with diminished upper lateral incisor-number.


Keywords: Agenesis; Arch Dimensions; Maxillary Lateral Incisor


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Citation: Tamouh Kabbani., et al. “Dental Arch Dimensions in Patients with Isolated Maxillary Lateral Incisor Agenesis (Mlia)”. EC Dental Science 20.5 (2021): 38-45.

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