Occlusal interferences analysed in patients treated with fixed prosthesis four years earlier.
This study consists of 147 subjects treated with fixed prostheses 4 years previously. Occlusal analyses were made, and the fillings, crowns, and pontics on the occlusal surfaces were recorded. Occlusal interferences were found in 42.6% of the fillings, in 34.9% of the crowns, in 27.0% of the pontics, and in 24.6% of the intact surfaces. The most common interference types were intercuspidation, retrusion and mediotrusion in the fillings, as well as intercuspidation, retrusion, and laterotrusion interferences in the crowns. In pontics interferences appeared mostly in intercuspidation and retrusion. When adjustment was made for preprosthetic occlusion, the number of interferences on all types of occlusal surfaces considerably decreased.
Ettala-Ylitalo
U M
UM
Markkanen
H
H
Yli-Urpo
A
A
D003442:Crowns; D003769:Dental Occlusion, Traumatic / Q000175:diagnosis*; D003793:Dental Restoration, Permanent; D003830:Denture, Partial, Fixed; D005260:Female; D006801:Humans; D008297:Male; D008409:Mastication; D013997:Time Factors; D014093:Tooth, Artificial