Determining the association between oral malodor and periodontal disease: A case control study.

Aim: To assess the role of periodontal health in oral malodor causation and compare the two methods (organoleptic and Halimeter) of malodor measurement.

Materials And Methods: A total of 240 subjects (60 subjects without any evidence of periodontal disease and 180 patients with gingivitis and periodontitis) were evaluated for periodontal and oral malodor parameters. Periodontal parameters included Plaque Index (PI), Gingival Index (GI), mSBI, calculus component of OHIS, pocket depth (PD), and clinical attachment level (CAL), and oral malodor was assessed by organoleptic scores, Halimeter readings, and Tongue Coating Index (TCI).

The effects of two attachment types on the stresses introduced to the mandibular residual ridge: a 3D finite element analysis.

Purpose: Two commonly used attachment systems for implant-retained overdentures are bar and ball systems. The aim of this study was to compare these two types of attachments on the basis of the stresses introduced to the mandibular posterior residual ridge by an overdenture retained by two implants.

Method And Materials: A basic model was generated from the data provided by a CT scan of a patient's mandible, the diagnostic casts, and the existing overdenture.