The effect of three different denture adhesives on the retention of mandibular complete denture (Comparative study)

Abstract

ABSTRACT
Background: Retention is one of the important factors in the success of the prosthodontic treatment. Retention is
affected by several factors which are physical, physiological, psychological, mechanical and surgical factors. The use of
denture adhesives improved the retention and stability of complete denture. The use of denture adhesives is indicated in
several cases , as in an immediate denture , flat ridge, patient with deficits in muscle control, xerostomic patient and
patient in need of psychological security the purpose of this study is to measure and compare the effectiveness of
denture adhesives (cushion, powder and cream protefix denture adhesive)in a well fitting mandibular complete denture
for flat ridge at various time intervals and to its relation with surface area of denture bearing mucosa.
Materials and methods: Ten edentulous patients with flat ridge, with age group (50-70) years were selected. New
complete dentures were constructed for them. A specially designed strain gauge force transducer and a strain indicator
unit were used to measure forces required to dislodge the denture from its foundation. Retention of mandibular
complete denture without adhesive and with the use of each type denture adhesives at intervals of 15minutes, 1hour
and 2hour were measured .The surface area of denture bearing mucosa was also measured.
Results and conclusion: This study revealed that there is a significant improvement in the retention of mandibular
complete denture for flat ridge after using three types' denture adhesives. Denture adhesives start their action
immediately and decreased with time. Powder was the most effective denture adhesives than cushion and cream.
Key words: Flat ridge, Denture adhesive, Strain gauge measuring device. J Bagh Coll Dentistry 2009; 21(2):5-9)