J Dent Rehabil Appl Sci.  2019 Jun;35(2):90-97. 10.14368/jdras.2019.35.2.90.

Relation of head posture and occlusal contact area using photo occlusion analysis

• Kim CH
• Ko KH
• Huh YH
• Cho LR
• Park CJ

• KMID: 2451756
• DOI: http://doi.org/10.14368/jdras.2019.35.2.90

Abstract

PURPOSE
Previous studies related with occlusal contact area were limited that interocclusal thickness level or the method of measurement has not been accurate in measuring. The purpose of this study was to investigate the relation between head posture and occlusal contact area using photo occlusion analysis.
MATERIALS AND METHODS
54 subjects with complete dentition (44 men, 10 women / 23 to 33 years of age) were included. To identify the relationship between head posture and occlusal contact area, subjects took interocclusal record in maximal intercuspal position with three different positions(supine position (0°) / inclined position (45°) / upright position (90°)) on the dental unit chair. Occlusal contact area was analyzed using photo occlusion analysis. Statistical analyses were performed with SPSS ver.25.0 at 95% confidence interval.
RESULTS
Head posture has no significant effect on the changes of occlusal contact area (P > 0.05).
CONCLUSION
When interocclusal relation is stable, head posture does not change a interocclusal record because head posture has no significant effect on occlusal contact area. Analysis of occlusal contact area using photo occlsion analysis device is useful due to its material property and simplicity.

Keyword

occlusal contact area; head posture; photo occlusion anaylsis; maximal intercuspal position

MeSH Terms

Dentition
Female
Head*
Humans
Male
Methods
Posture*

Figure

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  Fig. 1 Head postures. (A) Supine position (0°, group S), (B) Inclined position (45°, group I), (C) Upright position (90°, group U).

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  Fig. 2 Interocclusal record was modified to analyze. (A) Before modification, (B) After modification, (C) BiteEye® device, (D) Analysis of interocclusal record.

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  Fig. 3 Occlusal contact area according to head postures with each interocclusal thickness level.No significant differences were shown between group S, I and U.

Reference

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