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J Indian Prosthodont Soc. 2017 Jul-Sep;17(3):250-254. doi: 10.4103/jips.jips_321_16.

Effect of head posture on tooth contacts in dentate and complete denture wearers using computerized occlusal analysis system.

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Department of Prosthodontics, Babu Banarasi Das College of Dental Sciences, Babu Banarasi Das University, Lucknow, Uttar Pradesh, India.
Department of Prosthodontics, Career Postgraduate Institute of Dental Sciences and Hospital, Lucknow, Uttar Pradesh, India.
Department of Pedodontics and Preventive Dentistry, Career Post Graduate Institute of Dental Science, Lucknow, Uttar Pradesh, India.



The purpose of the study was to assess and compare the occlusal contacts in dentate and edentulous patients wearing complete denture with varying head posture.


Ad hoc sampling of 30 subjects (15 dentate and 15 edentulous) based on inclusion and exclusion criteria was done. Subjects were divided into two groups: dentate and edentulous. Each group was further divided into two subgroups based on two head postures-upright 90° and ventroflexed 30°. For recording of every posture, a new sensor was used, and the subject was asked to clench on the sensor in maximum intercuspation position at the two head postures.


Data were summarized as mean ± standard error and compared by Student's t-test using SPSS software (windows version 17.0 IBM corporation, New York, USA). A statistically significant correlation between head posture and contact area was found in dentate and denture wearers, i.e., tooth contact area varies with head posture.


It was concluded that the occlusal contacts vary at different head posture in dentate as well as in denture wearers. With ventroflexion, the number of tooth contact decreased as compared to upright-erect position in both groups. Clinical implication - since the number of tooth contacts varies with varying head postures, it is recommended that the balancing of the contacts should be done at varying head postures.


Computerized occlusal analyzer; goniometer; head posture; tooth contacts

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