Estimation of the occlusal force based on the morphological characteristics of the face

• Nakamura Taiji

  Division of Periodontology, Department of Oral Function, Kyushu Dental University

• Morishita Masaki

  Division of Periodontology, Department of Oral Function, Kyushu Dental University

• Muraoka Kosuke

  Division of Periodontology, Department of Oral Function, Kyushu Dental University

• Hanatani Tomoya

  Division of Periodontology, Department of Oral Function, Kyushu Dental University

• Usui Michihiko

  Division of Periodontology, Department of Oral Function, Kyushu Dental University

• Nakashima Keisuke

  Division of Periodontology, Department of Oral Function, Kyushu Dental University

Bibliographic Information

Other Title

• 顔貌形態による咬合力の推測

Abstract

Measurement of the occlusal force is important for estimating the risk of periodontal destruction, because an excessive occlusal force accelerates periodontal destruction in patients with periodontitis. Very few dentists assess the occlusal force in clinical practice, because an expensive device is needed for its measurement. The aim of the present study was to determine whether the occlusal force can be estimated based on the morphological characteristics of the face in young adults of the same age group with a similar number of teeth. Dental students (n = 100) of Kyushu Dental University participated in the present study (60 men and 40 women; age 23.1±2.99 years). The students were asked to bite pressure-sensitive films, and the bitten films were analyzed using Occuluser^® FDP707 (GC Corp. JAPAN) in order to measure the occlusal force. The facial photographs of all the students were obtained with a digital camera, and the photographs were incorporated into a computer for software assessment (ImageJ, NIH, USA). The total head height, zygomatic diameter, width of the lower jaw, area of the face, and gonial angle were measured in the incorporated images. The occlusal force was significantly higher in the male students than in the female students. Furthermore, the total head height and area of the face were significantly higher in the male students, whereas no significant differences in the zygomatic diameter, width of the lower jaw and gonial angle were observed between the male and female students. Multiple regression analysis was performed using the following two parameters as explanatory variables: total head height/zygomatic diameter and width of the lower jaw/zygomatic diameter. The occlusal force was significantly influenced by one of the measured parameters (width of the lower jaw/zygomatic diameter) and the sex of the subject, with a coefficient of determination of 0.25. These results suggest that the occlusal force can be partly estimated based on the morphological characteristics of the face and the sex in young adults.

Journal

• Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology)

  Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) 58 (1), 33-40, 2016

  JAPANESE SOCIETY OF PERIODONTOLOGY

Keywords

• facial morphology
• occlusal force
• pressure sensitive sheets

Details

• CRID: 1390001204415241472
• NII Article ID: 130005145054
• DOI: 10.2329/perio.58.33
• ISSN: 1880408X
• ISSN: 03850110
• Web Site: https://www.jstage.jst.go.jp/article/perio/58/1/58_33/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2016371821
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed