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

ABSTRACT

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.