Dental materials especially orthodontic elastics often get embedded in gingival tissues due to iatrogenic factors. If retained for a long time, inflammatory response starts as asymptomatic crestal bone loss and may progress to severe periodontal abscess. Unsupported orthodontic elastics used for diastema closure may result in exfoliation of teeth, while elastic separators may get embedded in in...

PURPOSE The aim of this study was to evaluate, through histomorphometric analysis, the effect that different loading times would have on the bone response around implants. MATERIALS AND METHODS Three Replace Select implants were placed on each side of the mandible in eight dogs (n = 48 implants). One pair of implants was selected for an immediate loading protocol (IL). After 7 days, the secon...

Osteoporosis is a systemic disease in which the skeletal condition is characterized by a decreased mass of normally mineralized bone, due to an augmentation of bone resorption processes. Bone biomarkers serum are used for the diagnosis. On the other hand the main cause of the resorption in the bone jaws are periodontitis, inflammatory cysts, developmental cysts, odontogenic neoplasms. Periodont...

Bone formation in adults determines the basic mass of bone and hence it is crucial to understand the mechanisms of its regulation. As remodeling is proceeding, bone resorption is determined by the physical conditions. Especially in women, postmenopausal bone loss is characterized by rapid bone loss due to increase in bone resorption and relative negative balance between such bone resorption and...

Bone remodeling in physiological and pathological conditions represents a balance between bone resorption mediated by osteoclasts and bone formation by osteoblasts. Bone resorption is tightly and dynamically regulated by multiple mediators, including cytokines that act directly on osteoclasts and their precursors, or indirectly by modulating osteoblast lineage cells that in turn regulate osteoc...

ABSTRACT Purpose: The aim of the study was to evaluate crestal bone height changes around laser grooved implants with mandibular overdenture. Materials and Methods: sample comprised 10 completely edentulous male patients age range between 40-60 years. In each patient, two were placed in interforaminal area. Implants exposed after three months healing, ball abutments used retain dentures. Cresta...

A quantitative mouse calvarial bone resorption assay was employed to investigate the effects of the mast cell products, heparin and histamine, and of salmon calcitonin. 'Amorphous' heparin, containing a range of molecular weight fractions, inhibited resorption by 15-20% at concentrations of 0.75-5.0 mg/ml. A 'defined' heparin species of mol.wt 13 500 inhibited resorption by 14-28% at 10(-5)-10(...

The anterior maxilla represents a therapeutic challenge for single-tooth replacement with implants. The surgical trauma delivered to soft and hard tissues during implant placement can influence the future esthetic result. The clinician should use surgical techniques that prevent esthetic complications, such as increased crown length or loss of interdental papillae, without compromising osseoint...