Temporomandibular Joint Disorder and Occlusal Changes: Case Reports

Occlusion may change spontaneously but dental treatment or trauma in the patients with temporomandibular disorders (TMDs) may also alter occlusion. This report presents three cases displaying occlusal changes. Review of literature emphasizes the significance of TMD treatment. Conservative treatment modalities such as counseling, medication, physical therapy and splint therapy may be selected as initial treatment options. Irreversible or invasive treatment, such as orthodontic, prosthodontic, and occlusal adjustment should not be attempted early. In case there is no response to conservative treatment, joint injection, muscle injection, arthrocentesis or arthroscopic surgery might be performed.

The occlusal changes after initial periodontal therapy in patients with chronic periodontitis analysed by T-scan Ш occlusal analysis system / 实用口腔医学杂志

Objective:To observe the occlusal changes of patients with chronic periodontitis(CP)after initial periodontal therapy an-alysed by T-scan Ш occlusal analysis system.Methods:26 patients with CP were included.The patients were treated by initial perio-dontal therapy,including scaling,subgingival curettage,root planning and oral hygiene instruction.The occlusion time(OT),disoclu-sion time(DT),center of force trajectory(COFT),the percentage of bite force for maximum movie force at maximum area frame (MABF /MMF)and the bite force distribution balance between the left and right sides (BFDB)were measured by T-scan III occlusal analysis system before and six weeks after the treatment.All the data were statistically analyzed.Results:After initial periodontal treatment,the OT and DT extended for (0.20 ±0.14)s and (0.11 ±0.08)s respectively(P <0.05),the COFT increased by (0.81 ±1.19)mm(P <0.05).Moreover,the MABF /MMF and BFDB decreased by(7.20 ±4.41)% and (8.90 ±7.71)% respectively (P <0.05).Conclusion:Initial periodontal treatment may improve the occlusion of patients with chronic periodontitis.