Beethoogteperceptie bij occlusale restauraties.

Talhi, A. (2014) Beethoogteperceptie bij occlusale restauraties. thesis, Dentistry.

Text TalhiA.pdf Restricted to Registered users only Download (307kB)

Abstract

The preferred treatment of occlusal decayed teeth is restoration using composite. It is important to maintain proper occlusion and articulation. Articulating paper can be used to guide the practitioner into restoring the vertical dimension of occlusion. However it seems that this method is not always sufficient to prevent high a restoration. In the clinical situation in which a patient must indicate whether a restoration feels too high, it appears that two receptors are responsible in discriminating differences in thickness between the teeth: the periodontal receptors and muscle spindles. The question which then is central to this study is: What is the contribution of the muscle spindles of the jaw closing muscles in determine the? The goal of the research is to develop a protocol that allows the practitioner to instruct the patient on how to act in determining the occlusal vertical dimension during occlusal restorations. Height perception in occlusal vertical dimension was registered with feeler gauges. The influence of muscle spindle adaptation on the minimum detectable height, MDH, was established by determining the perception under normal circumstances and comparing it after muscle spindle adaptation. It was examined whether this effect could possibly be undone by the activation of the jaw closing muscles. The results show that muscle spindle adaptation gives a significant difference in MDH compared with immediately before and after muscle spindle adaptation. The effect of muscle spindle adaptation on the MDH can be undone by waiting 5 minutes followed by making five chewing cycles. The same applies for the precision with which the MDH can be determined. Also, it is more accurate and will return to their original values . It can be concluded that muscle spindle adaptation affects the height perception of the occlusal vertical dimension. Not all subjects respond the same to muscle spindle adaptation. Some remain accurate, others are inaccurate in determine the precision of the MDH. In the clinical situation, this means that the practitioner does not know in advance whether a patient may or may not be influenced by muscle spindle adaptation. Therefore, it is recommendable that the practitioner instructs the patient in making five chewing cycles in order to prevent a non-realistic height of the occlusal vertical dimension.

Item Type:	Thesis (Thesis)
Supervisor name:	Jüch, Dr. P.J.W.
Faculty:	Medical Sciences
Date Deposited:	25 Jun 2020 11:03
Last Modified:	25 Jun 2020 11:03
URI:	https://umcg.studenttheses.ub.rug.nl/id/eprint/2304

Actions (login required)

View Item