engleski

The relationship between body posture and malocclusion

Objectives: The aim of this study was to compare changes in the masticatory system with changes in body posture and the function of the cervical spine and associated muscles. Methods:The study was designed as a double-blind clinical trial. Both experimental and control groups were carefully selected. Subjects were chosen using the RDC/TMD protocol, screened by an EMG device and mandible movements analyzed with ArcusDigma(Kavo, Germany) device.This data was used to ensure that patients have all the variables within requested parameters.The criteria for the experimental group were: orthopedically unstable occlusion, Angle class II or III occlusion with no canine guidance, and non- classifiable malocclusions. Several tests about body posture, neck and mouth mobility were preformed using an infrared optoelectronic system and EMG recording. All subjects were diagnosed as mild cases ofTMDs and were provided with a splint.They were instructed to wear the splint overnight before the actual recording took place. After the initial recording was done, subjects were allowed to take off splints, and after a meal the recording was repeated, implementing the same protocol as previously. Results: The data was transferred to an appropriate database, and statistically mined for specific patterns and differences. Result didn't show a specific parameter or variable which could be attributed to all of the participants. However, when data was recalculated in form which allowed to group differences, there was a significant distinction between those recordings with and without a splint in the examination group, and also between both groups. Conclusion:Taking into account variety of compensation mechanisms and individual responses to same the disturbance, it is difficult to prove that occlusion has an influence on the entire body. Looking at the problem as multivariate allowed us to prove that a connection does exist but that it isn't straightforward or easy to explain.

body posture; dental occlusion; tooth contacts

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