Authors : Silvia Pridana, Ismet Danial Nasution, Indra Nasution, Putri Welda Utami Ritonga
DOI : 10.18231/j.ijohd.2019.004
Volume : 5
Issue : 1
Year : 2019
Page No : 14-19
The objective of border molding procedure is to get peripheral seal to achieve a retentive denture. An exact border molding record is influenced by the material and technique. Green stick compound is usually the material of choice nowdays, it has thermoplastic mechanical properties that makes some problems. Polyvinylsiloxane have a long working time which come as material option that resolved the green stick compound limitations. This material is available in several viscosity, which influence their mechanical properties. This study aimed to evaluate the effect of border molding materials and techniques in recording morphologic detail of pheriferal tissue and denture base retention. Four custom trays were made from each subject then border molding procedure was done with either heavy body or putty polyvinylsiloxane material with fuctional or manual technique. Retention value was measured after recording final impression with analog push and pull gauge. Working models were then scanned with digital scanner CAD/CAM and measured with 3D builder software. The statistical significance of retention value and morphologic detail of pheriferal tissue was tested with univarian dan unpaired T test. Mean value at morphologic detail of pheriferal tissue with heavy body polyvinylsiloxane is smaller than with putty polyvinylsiloxane. Higher mean value of retention at putty with functional technique is (48,00 + 6.65) N. there is no significance value on both materials and techniques. Based on this research putty polyvinylsiloxane with functional technique can be recommended for border molding procedure.
Keywords: Border molding, Polyvinylsiloxane, Peripheral seal.