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The effect of occlusal splints on the mechanical stress on teeth as measured by intraoral sensors
Journal of Oral Science ( IF 1.9 ) Pub Date : 2020-12-23 , DOI: 10.2334/josnusd.20-0030
Yuto Tanaka 1 , Toru Yoshida 2 , Yoshiaki Ono 1 , Yoshinobu Maeda 2
Affiliation  

Purpose: Whether it is possible to prevent mechanical stress on teeth via an occlusal splint remains to be clarified. This study aimed to assess the same by simultaneously recording the occlusal pressure and strain on the teeth in humans.

Methods: Eleven participants (five women and six men; mean age 25.7 years) were enrolled in this study. Hard and soft oral appliances were fabricated for the maxillary arch of each participant. The strain on the four target teeth (right maxillary and mandibular first premolars, and first molars) and occlusal pressure were concurrently measured, while the participants performed maximum voluntary teeth clenching under each condition (hard, soft, or no occlusal splint).

Results: Compared to the absence of an occlusal splint, hard occlusal splints generated less strain on molar teeth but more strain on premolar teeth, while soft occlusal splints did not lower the strain on all target teeth significantly.

Conclusion: Considering the limitations of this study, hard occlusal splints should be used for the protection of molar teeth but for premolar teeth caution is required and depends on the case. On the other hand, soft occlusal splints may not have any benefit for the protection of either type of teeth for patients exhibiting excessive occlusal pressure.



中文翻译:

口腔内传感器测量的咬合夹板对牙齿机械应力的影响

目的:是否有可能通过咬合夹板防止牙齿受到机械应力尚待弄清。这项研究旨在通过同时记录人类牙齿上的咬合压力和应变来评估它们。

方法: 11名参与者(5名女性和6名男性;平均年龄25.7岁)参加了这项研究。为每个参与者的上颌牙弓制造硬和软的口腔器具。同时测量了四个目标牙齿(右上颌和下颌第一前磨牙和第一磨牙)的应变和咬合压力,而参与者在每种情况下(硬,软或无咬合夹板)进行了最大的自愿咬合。

结果:与不存在咬合夹板相比,坚硬的咬合夹板在磨牙上产生的应变较小,而在前磨牙产生的应变较大,而柔软的咬合板并未显着降低所有目标牙齿的应变。

结论:考虑到这项研究的局限性,应该使用坚硬的咬合夹板来保护磨牙,但是对于磨牙前的牙齿,需要谨慎并视情况而定。另一方面,对于咬合压力过高的患者,软性咬合夹板对于保护这两种类型的牙齿可能没有任何好处。

更新日期:2020-12-28
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