The purpose of this study was to assess the effects of the administration of zoledronic acid (ZA) during orthodontic movement in rats. A hundred and twenty male Wistar rats were applied force of 30 cN with spring closed nickel-titanium to move the upper right first molar to mesial. In the Control Movement group (CM), only tooth movement was performed; the Control Acid Zoledronic group (CAZ) rec...

Tooth loss has been shown to affect learning and memory in mice and increases the risk of Alzheimer's disease. The dentate gyrus is strongly associated with cognitive function. This study hypothesized that tooth loss affects neurons in the dentate gyrus. Adult male mice were randomly assigned to either the tooth loss group or normal control group. In the tooth loss group, the left maxillary and...

Aim: To determine if the artificial staining with black tea (BT) influences enamel microhardness before in-office bleaching and BT is necessary to evaluate efficacy of 35% hydrogen peroxide Methods: Enamel/dentin blocks were randomized into groups according protocol (n=5/group): (CO) control – maintained in saliva solution (AS); (BT4) immersed for 4 h; (BT24) 24 h. After protocols, all specimen...

AIM To directly determine the mass of dye retained in teeth following exposure to aqueous solutions of Rhodamine B and to correlate tooth color modifications. MATERIALS AND METHODS Extracted third molars (25) were selected and sectioned at the cementoenamel junction for coronal staining. Pulp tissue was removed and teeth sonicated to remove debris. Teeth were kept in deionized water for 12 ho...

We describe a modification to the most common method of preparing sperm whale teeth for age determination. The first mandibular or nearest straightest tooth was sectioned in half with slow-rotating band saw, polished and, rather than subjecting 10% formic acid 30 hours, etched 15% acid. exposure time each varied depending on size, and especially, density tooth. Clear, well defined growth layer ...

Background: Tooth extraction is a common dentistry procedure followed by alveolar bone resorption. Trauma that occurs in tooth will induce exaggerating inflammatory process, leads to increased Bone resorption can be minimized administering combination of Nigella sativa extract and bovine graft. The material expected increase the woven area formation speed up remodeling process. Purpose: To dete...

Achievement of an esthetic single-tooth restoration in the anterior segment is a difficult task for the restorative dentist. A case is described in which two congenitally missing maxillary lateral incisors were replaced with single-tooth implants. A new technique was used to restore the teeth provisionally with a polyethylene ribbon and resin replacement. Light-cured staining systems for acryli...

The aim of this study was to evaluate histological changes in the periodontal structures of beagle dogs after using high and low continuous forces during experimental tooth movement. An orthodontic appliance was placed on the second premolar and the first molar by exerting a continuous and constant reciprocal force of 25 cN on one side and 300 cN on the other side of the mandible. Tooth movemen...

BACKGROUND The purposes of this study were to examine the oral tissues and caries prevalence of children undergoing liver transplantation, and to evaluate the relationship between tooth staining and serum bilirubin level. METHODS Thirty-four children (22 boys and 12 girls) under the age of 6 years with end-stage liver disease were referred from the Liver Transplantation Center at Kaohsiung Ch...