Bone density assessments of dental implant sites: 3. Bone quality evaluation during osteotomy and implant placement.

Purpose: In previous publications of this series of studies on human cadaver jaws, bone densities were assessed and compared using subjective evaluation, conventional computed tomography (CT), and cone-beam computed tomography (CBCT). The aim of this study was to compare subjective bone quality during osteotomy and implant insertion resistance torque to noninvasive subjective and objective radiographic bone density assessments.

Materials And Methods: Forty-two designated implant sites were selected.

Bone density assessments of dental implant sites: 2. Quantitative cone-beam computerized tomography.

Purpose: Bone density was evaluated in designated implant sites using a novel volumetric computerized tomographic device. Those measurements were then compared with traditional quantitative computerized axial tomography and subjective bone density evaluation.

Materials And Methods: Sixty-three potential sites for implant placement in jaws from 9 human cadavers were used.

Bone density assessments of dental implant sites: 1. Quantitative computed tomography.

Purpose: This study was designed to evaluate variations of bone density in designated implant sites using quantitative computed tomography (QCT) and to compare the QCT measurements to subjective evaluation of bone density.

Materials And Method: Sixty-two designated implant sites in jaws of 9 human cadavers were used. Indicator rods, 2 mm in diameter, were placed in all sites.

Probing bone level measurements for determination of the depths of Class II furcation defects.

Background: Probing bone measurements as an alternative to open bone measurements to evaluate regenerative procedures in furcation defects do not seem to be used as yet. The purpose of the present study was to investigate the reliability of probing bone measurements in such defects.

Methods: Fifteen patients scheduled for surgical treatment of a total of 30 mandibular molars with buccal or lingual Class II furcation defects were studied.

Pain experienced by patients during periodontal maintenance treatment.

Background: The aims of this study were to assess the degree of pain experienced by patients during probing and debridement and to determine whether the pain responses could be predicted by the patient's age, gender, percentage of sites > or = 4 mm deep, and responses to a questionnaire on dental anxiety.

Methods: Prior to the maintenance procedures, 26 adult patients completed an anxiety questionnaire. Subsequently, measurements of probing depths were performed.