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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 14 (1999), No. 4     15. Aug. 1999
Int J Oral Maxillofac Implants 14 (1999), No. 4  (15.08.1999)

Page 504-509


Occlusal Contacts of Edentulous Patients with Mandibular Hybrid Dentures Opposing Maxillary Complete Dentures
Suzuki, Tetsuya / Kumagai, Hiroshi / Yoshitomi, Nobuyuki / McGlumphy, Edwin A.
The purpose of this study was to evaluate differences between the occlusal contacts of edentulous patients with mandibular implant-supported hybrid dentures opposing maxillary complete dentures and those of patients with conventional maxillary and mandibular complete dentures. Six parameters related to occlusion were measured in the 2 groups (n = 40 for each group) using pressure-sensitive film. The mean values generated by each test group for each parameter were compared using a t test. Pearson's correlation coefficients between occlusal force, age, and time in function were examined. Occlusal force and area in the implant denture wearers were larger than those in the conventional denture wearers. No significant difference was seen in occlusal force balance between the left and right sides. The center of occlusal load in the implant denture wearers was more anterior. The maxillary denture may become more unstable in implant denture wearers. It is suggested that the stability and retention of a maxillary denture be checked and the occlusion be adjusted more frequently in the hybrid denture wearer than in the conventional denture wearer.

Keywords: center of occlusal loads, hybrid denture, occlusal force, pressure-sensitive film, stability