Lower free end denture is a denture which one or two saddle end that replaced posterior natural teeth. Free end denture becomes unstable due to difference in compressibility between supporting mucosa which can affect its health.
The purpose of this research is to ascertain the influence of design class 2 leverage of metal framework free end denture toward bone mandibular resorption and supporting bone alveolar after wearing denture for 3 months. This research is a clinical experimental on 20 male and female subjects within age of 30-60 with bilateral and unilateral free end mandibular which fulfilled class 2 leverage of metal framework partial denture’s inclusion criteria. Height of bone mandibular and supporting alveolar bone were measured by using panoramic radiographic from January-March 2018. The data was being analyzed by using t paired test and Wilcoxon test.
The result showed resorption of significant bone was found with class 2 leverage design on mesial (p=0.010), midline (p=0,001), distal (p=0,000). Resorption of significant supporting alveolar bone was also found (p=0,012). The result corresponds with other research which stated resorption of bone was found after wearing a denture. The conclusion stated that this class 2 leverage of retainer will influenced in increasing resorption of mandibular bone and supporting alveolar bone with free end of metal framework denture.