THE MEAN GINGIVAL THICKNESS OF MAXILLARY AND MANDIBULAR ANTERIOR REGION IN INDIVIDUALS WITH DIFFERENT CRANIO-FACIAL MORPHOLOGY


Kaya Y. , Alkan Ö. , Keskin S.

93th Congress of European Orthodontic Society , Geneve, Switzerland, 5 - 10 June 2017, pp.1

  • Publication Type: Conference Paper / Summary Text
  • City: Geneve
  • Country: Switzerland
  • Page Numbers: pp.1

Abstract

Aim: The aim of this study was to evaluate the mean gingival thickness of maxillary and mandibular anterior region in individuals with different cranio-facial morphology.

Materials and Methods: For each dental arch 128 periodontally healthy orthodontic patients with norm values of upper incisor position (1/NA angle and mm, IMPA angle) and lower incisor position (1/NB angle and mm, 1/SN angle) were enrolled in the study. The cranio-facial morphology of the study participants was evaluated in the sagittal (ANB angle) and vertical directions (SN/GoGn angle) on the lateral cephalograms taken at the beginning of the treatment. In the sagittal direction the individuals were divided into three groups as class I, II and III. Each group was classified as low angle, norm and high angle in the vertical direction. The mean gingival thickness of maxillary and mandibular anterior region was determined by the ratio of the sum of gingival thickness of the relevant teeth, measured by transgingival probing technique, to the number of the teeth. Factorial variance analysis was employed in order to identify the extent to which a difference was apparent according to these parameters.

Results: The ANB angle of class I, II and III groups were 2,591±0,918, 6,05 ±1,277 and -0,844 ±1,441 and the SN/GoGn angle of low angle, norm and high angle groups were 25,258±1,57, 32,702±1,99 and 39,802±3,187 respectively. The mean gingival thickness of maxillary anterior region was 1,173±0,61 mm, 1,103±0,207 mm and 1,130±0,244 mm in class I, II and III groups and 1,084±0,150 mm, 1,136±0,247 mm and 1,159±0,249 mm in low angle, norm and high angle groups respectively. The mean gingival thickness of mandibular anterior region was 0,710±0,156 mm, 0,741±0,176 mm and 0,691±0,157 mm in class I, II and III groups and 0,705±0,184 mm, 0,701±0,132 mm and 0,735±0,174 mm in low angle, norm and high angle groups respectively. No significant difference was determined between groups in terms of the mean gingival thickness of maxillary and mandibular anterior region.

Conclusion: This study indicates that no significant difference between groups in terms of mean gingival thickness of maxillary and mandibular anterior region in individiuals with different cranio-facial morphology.