Bite forces and their resultants during forceful intercuspal clenching in humans

Hattori, Yoshinori; Satoh, Chiaki; Kunieda, Takeyasu; Endoh, Rui; Hisamatsu, Hisayuki; Watanabe, Makoto

doi:10.1016/j.jbiomech.2009.03.040

Cited by 106 publications

(84 citation statements)

References 28 publications

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“…15,23 Findings from some experimental studies support this biomechanical model. [31][32][33] Others argue that increased RET on human third molars is not necessarily a functional response to increased bite force. 22 Instead, the thicker third molar enamel may be related to a morphological change, whereby a reduction in crown size is facilitated by a reduced dentine component.…”

Section: Enamel Thickness Along the Permanent Molar Rowmentioning

confidence: 99%

Two-dimensional patterns of human enamel thickness on deciduous (dm1, dm2) and permanent first (M1) mandibular molars

Mahoney

2010

Archives of Oral Biology

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Section: Enamel Thickness Along the Permanent Molar Rowmentioning

confidence: 99%

Two-dimensional patterns of human enamel thickness on deciduous (dm1, dm2) and permanent first (M1) mandibular molars

Mahoney

2010

Archives of Oral Biology

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“…OCAs or occlusal points have been compared using occlusal articulating paper (1,2), occlusal strips or silk (3,4), alginate impressions (5-7), black silicone bite registration material (8), pressure-sensitive film (9,10), the T-Scan system (11,12), and silicone material. These studies demonstrated a positive correlation between OCAs or occlusal points and tooth clenching intensity.…”

Section: Introductionmentioning

confidence: 99%

Comparing the occlusal contact area of individual teeth during low-level clenching

Nishimori

Iida

Kamiyama

et al. 2017

Journal of Oral Science

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The aim of this study was to investigate the occlusal contact area (OCA) in individual teeth during low-level tooth clenching in 24 healthy participants. Before measurements were made, the 100% maximum voluntary contraction (MVC) was determined. At baseline, all subjects were instructed to close their mouth and touch the opposing teeth with minimal force. Occlusal contact was recorded during three jaw motor tasks (baseline, 20% MVC, and 40% MVC) using a blue silicone material. OCA thickness was determined from images and defined on five levels: level 1 (0-149 µm), level 2 (0-89 µm), level 3 (0-49 µm), level 4 (0-29 µm), and level 5 (0-4 µm). Premolar and molar OCAs increased significantly from baseline to 20% MVC and 40% MVC. The OCA of each anterior tooth did not change significantly with increasing clenching intensity at all levels. Our findings suggest that premolar and molar OCAs may be altered by low-intensity clenching, affecting the teeth and periodontal tissues.

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confidence: 99%

“…18 To simulate lateral excursion, a 200-N load was applied to the middle of the grinding ridge of the buccal cusp. 18 The principal stress was computed at the crestal cortical, trabecular, and apical cortical bone. This offers the possibility of distinguishing between tensile and compressive stresses; 10 the maximum principal stress represents the peak tensile stress and the minimum principal stress assigns the peak compressive stress.…”

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confidence: 99%

Biomechanical evaluation of subcrestal dental implants with different bone anchorages

et al. 2014

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This study evaluated the biomechanical influence of apical bone anchorage on a single subcrestal dental implant using three-dimensional finite element analysis (FEA). Four different bone anchorage designs were simulated on a posterior maxillary segment using one implant with platform switching and internal Morse taper connection as follows: 2 mm subcrestal placement with (SW) or without (SO) the implant apex engaged into the cortical bone or position at bone level with anchorage only in the crestal cortical (BO) bone or with bicortical fixation (BW). Each implant received a premolar crown, and all models were loaded with 200 N to simulate centric and eccentric occlusion. The peak tensile and compressive stress and strain were calculated at the crestal cortical, trabecular, and apical cortical bone. The vertical and horizontal implant displacements were measured at the platform level. FEA indicated that subcrestal placement (SW and SO) created lower stress and strain in the crestal cortical bone compared with crestal placement (BO and BW models). The SW model exhibited lesser vertical and horizontal implant micromovement compared with the SO and BO models under eccentric loading; however, stress and strain were higher in the apical cortical bone. The BW model exhibited the lowest implant displacement. These results indicate that subcrestal placement decreases the stress in the crestal cortical bone of dental implants, regardless of apical anchorage; however, apical cortical anchorage can be effective in limiting implant displacement. Further studies are required to evaluate the effects of possible remodeling around the apex on the success of subcrestal implants.

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Bite forces and their resultants during forceful intercuspal clenching in humans

Cited by 106 publications

References 28 publications

Two-dimensional patterns of human enamel thickness on deciduous (dm1, dm2) and permanent first (M1) mandibular molars

Two-dimensional patterns of human enamel thickness on deciduous (dm1, dm2) and permanent first (M1) mandibular molars

Comparing the occlusal contact area of individual teeth during low-level clenching

Biomechanical evaluation of subcrestal dental implants with different bone anchorages

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