Accuracy and efficiency of a calibration approach in dynamic navigation for implant placement: An in vitro study.

Background/purpose: Computer-assisted dynamic navigation surgery could provide accurate implant placement. However, its low efficiency was always criticized by dental surgeons. The purpose of this study was to evaluate the accuracy and efficiency of a calibration approach with reflective wafers in dynamic navigation for implant placement.

Accuracy of 3 calibration methods of computer-assisted dynamic navigation for implant placement: An in vitro study.

Statement Of Problem: Dynamic navigation for implant placement has been reported to be more accurate than freehand surgery. However, the accuracy of the calibration methods used for navigation in partially edentulous individuals with distal extensions remains unknown.

Purpose: The purpose of this in vitro study on dental models was to evaluate the accuracy of 3 calibration methods of dynamic navigation for implant placement in the distal extension of partially edentulous arches.

FOXO1 expression in chondrocytes modulates cartilage production and removal in fracture healing.

Fracture healing is a multistage process characterized by inflammation, cartilage formation, bone deposition, and remodeling. Chondrocytes are important in producing cartilage that forms the initial anlagen for the hard callus needed to stabilize the fracture site. We examined the role of FOXO1 by selective ablation of FOXO1 in chondrocytes mediated by Col2α1 driven Cre recombinase.

New surgery approaches preserving entire papilla to treat isolated interdental intrabony defects: A narrative review.

Objectives: To review novel techniques of preserving the entire papilla to minimize the trauma of fragile papilla in periodontal regeneration surgeries.

Material And Methods: Electronic databases (Pubmed) and relevant journals were searched until September 4, 2020. Randomized controlled trials, cross-sectional and cohort studies in English were included.

Natural progression of periodontal diseases in Chinese villagers based on the 2018 classification.

Background: Based on the 2018 classification, we aimed to determine the prevalence, distribution, and progression of periodontitis in the rural Chinese population without access to dental care.

Methods: In all, 404 subjects (28.7 ± 8.

The Interrelationship Between Diabetes, IL-17 and Bone Loss.

Purpose Of Review: Diabetes has a detrimental effect on bone, increasing the risk of fracture and formation of osteolytic lesions such as those seen in periodontitis. Several diabetic complications are caused by diabetes-enhanced inflammation. This review examines mechanisms by which IL-17 contributes to diabetes-enhanced periodontitis and other effects of IL-17 on bone.

Natural 4-year periodontal progression of mandibular first molars in Chinese villagers based on radiographic records.

Background: To report 4-year natural periodontal progression of mandibular first molars based on radiographic records in 15 to 44-year-old Chinese villagers.

Methods: In 1992 (N = 486) and 1996 (N = 413), panoramic radiographs were recorded. Tooth loss of mandibular first molars was calculated.

A 4-year prospective study of the progression of periodontal disease in a rural Chinese population.

Objectives: The natural progression of periodontitis in the Chinese population is not well researched. We investigated the progression of periodontal disease over 4 years in 15-44-year-old Chinese villagers with no access to regular dental care.

Methods: In 1992, 486 villagers were enrolled, and in 1996, 413 villagers were re-examined.