Influence of tooth loss on mandibular morphology: a cone-beam computed tomography study

• Shaimaa-Mohamed Fouda ^[2] ; Mohammed M. Gad ^[2] ; Maha El Tantawi ^[3] ; Jorma I. Virtanen ^[1] ; Kirsi Sipila ^[4] ; Aune Raustia ^[4]
  1. [1] University of Turku

     University of Turku

     Turku, Finlandia

     
  2. [2] MSc. Lecturer, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
  3. [3] Professor, Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
  4. [4] PhD. Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; PhD. Professor, Research Unit of Oral Health Sciences, Prosthetic Dentistry and Stomatognathic Physiology, Faculty of Medicine, University of Oulu, P.O. Box 5281, 90014 Oulu, Finland

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 11, Nº. 9 (September), 2019, págs. 814-819
• Idioma: inglés
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• Resumen

  • Tooth loss adversely affects patients’ health and psychosocial wellbeing. In addition, it changes mandibular morphology. Objective: To evaluate the effect of tooth loss, age, and gender on mandibular morphology.

    Cone-beam computed tomographic (CBCT) scans of 101 patients were examined to measure the gonial angle (GA), ramus height (RH) and condylar height (CH). Patients’ age, gender, and dental status were recorded. Repeated measures analysis of variance (ANOVA) was used to assess the impact of gender, age, and tooth loss on the GA, RH and CH. The mean measurements of the GA, RH and CH were compared between dentate/edentulous patients after splitting by gender.

    The GA was larger in edentulous patients compared to dentate ones, in females than in males, and in older than in younger. RH on the right side was significantly longer than on the left side (P< 0.0001), and also longer in males and younger patients. CH was shorter in younger than in older patients and in dentate than in edentulous patients.

    Tooth loss is associated with changes in mandibular morphology and its prevention would avoid these irreversible changes.