Title: Condylar distraction effects of two-phasefunctional appliance/edgewise therapy versus one-phase onathologically based edgewise therapy
Abstract: The purpose of this study was to determine the magnitude of condylar axis distraction from maximum intercuspation (MI) to centric relation (CR) in a 2-phase treatment group compared with a group of patients treated with a 1-phase gnathologically based treatment approach. More specifically, the difference in condylar axis position measured was the position of the condyles when the teeth meet in maximum intercuspation and that position in which the initial tooth contact occurs in centric relation. The CR registration was obtained after 3 weeks of continuous splint wear to achieve the neuromuscular release necessary to obtain a muscle/joint-guided position rather than a tooth-guided condylar position. Measurements of the vertical, transverse, and anterior-posterior distraction of the articulator's condyles from CR to MI were recorded on a millimetric grid using the Panadent condylar position indicator (CPI; Panadent Corp, Grand Terrace, CA). Study results indicated a statistically significant difference in the magnitude of condylar distraction from CR to MI in only the vertical dimension when comparing patients treated in 2 phases versus those treated with a 1-phase gnathological approach. The vertical CPI discrepancy resulting from the 2-phase approach averaged 1 mm larger than that from the 1-phase approach. Although differences in the magnitude of discrepancies were also found in the anteroposterior (AP) and transverse dimensions, these differences were not statistically significant at P < .01.
Publication Year: 2003
Publication Date: 2003-06-01
Language: en
Type: review
Indexed In: ['crossref']
Access and Citation
Cited By Count: 2
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot