The effect of bruxism on periodontal tissues and bone changes by cone-beam computed tomography: A retrospective study.

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Erdem D., Seki U., Güzeldemir Akçakanat E.

Europerio 10, Kobenhavn, Danimarka, 15 - 18 Haziran 2022, cilt.49, ss.66-67, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Cilt numarası: 49
  • Doi Numarası: 10.1111/jcpe.13635
  • Basıldığı Şehir: Kobenhavn
  • Basıldığı Ülke: Danimarka
  • Sayfa Sayıları: ss.66-67
  • Kocaeli Üniversitesi Adresli: Evet

Özet

Background & Aim: Bruxism is a common phenomenon, with a prevalence of 8–31%. As a result of this activity, the mandible is exposed to strong and long-term bite forces. The aim of this study was to evaluate mandibular bone and periodontal tissue changes using Cone Beam Computed Tomography (CBCT). Methods: CBCT images of patients with bruxism taken for various reasons were used in the radiology archive of Kocaeli University, Faculty of Dentistry. Bone changes were measured using radiomorphometric indices [superior mandibular index (CBCT-I[S]), inferior mandibular index (CBCT-I[l]), mental index (CBCT-MI), mandibular cortical index (CBCT-CI)] in the mental foramen region. In addition, lamina dura thickness (LD), periodontal ligament width (PDL), and radiological alveolar bone loss (RBL) of the posterior teeth were recorded. Results: A total of 127 CBCT images (66 left/61 right mandible) of 78 bruxists aged 18–55 were analysed retrospectively. While 55 of the participants were females (70.5%), 23 were male (29.5%) and the mean age was 40.83 + 11.6-yrs-old. Of the total 127 CBCT images evaluated, 38.6% had LD thickening, 61.9% had widening of the PDL, and 50.2% of individuals had RBL. The widening of the PDL range and RBL was found to be higher in older individuals (p < 0.05). CBCT-MI mean was 3.4 mm. CBCT-MI was above the threshold value in 75.5% of all images. CBCT-I (S) was 0.27, CBCT-I (l) was 0.22. CBCT-I indices were higher in women (p < 0.05). Of the images, 82 were CBCT-CI type1 (64.5%) and 45 were type2 (35.5%). CBCT-CI type3 was not seen in any of the patients. Individuals who are older than 40 years old have a higher rate of CBCT-CI type2 (p < 0.05). Conclusions: The forces caused by bruxism may cause the periodontal ligament space to widen, increase in mandibular cortical width, and decrease in the bone porosity. These changes should be considered when planning treatment in patients with bruxism.