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International Journal of Preventive and Clinical Dental Research


An area of soft tissue along the junction of the hard and soft palate on which pressure, within physiologic limits of the tissues, can be applied by a denture to aid in its retention can be defined as the posterior palatal seal (PPS). The functions of PPS are to provide retention, to prevent food from getting under the base of the denture, to diminish the gag reflex, to make the denture less conspicuous to the tongue, and to counteract denture warpage due to dimensional changes during the curing process by providing a thick border. The location and recording of the PPS, although being a very significant step, are still a frequently neglected procedure, because of lack of proper knowledge. Clinically, various different locations of the vibrating line resulted from different methods. This study was therefore designed to evaluate if the posterior and anterior vibrating lines could be distinguished as separate lines of flexion and to evaluate type of soft palate among Indian population, i.e., Wardha population. The following conclusions were made, from the above study: (a) Two separate lines of flexion could be located in Indian population, when the appropriate action was elicited for the posterior and anterior vibrating lines; (b) in flat group (group III), the vibrating line was farther posteriorly (i.e., closer to a line joining both hamular notches), resulting in the broadest PPS area, whereas the posterior extension of the PPS area in the deep vault was less than in groups II (medium) and III (deep). (c) In group III (flat), the width of the PPS area was greater than in groups I (deep) and II (medium). This width was the least in group I (deep).

Keywords: Anterior, Hamular notch, Posterior palatal seal, Posterior vibrating lines.

How to cite this article: Pisulkar S, Bhola R, Pakhan AJ, Godbole SR, Dahane T. Prevalence of Types of Soft Palate in Indian Population in Wardha Region, Maharashtra, India: An in vivo Study. Int J Prev Clin Dent Res 2018;5(1):37-40.

Source of support: Nil

Conflict of interest: None

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