Immediate postextraction implant placement in sheep's mandibles: a pilot study.

Purpose: In this study, sheep were examined as a potential animal model for immediate implant placement in fresh extraction sockets using experimental photopolymerisable bioabsorbable polymers.

Materials: A total of 22 cylindrical implants were placed in fresh mandibular premolar extraction sockets of 7 sheep. Residual bone-implant voids were filled with a biocompatible composite of poly-methyl-methacrylate and poly-hydroxyl-ethyl-methacrylate (Bioplant 24).

Evaluation of periodontal changes following intra-alveolar prosthesis for maxillary cheek tooth extraction in ponies.

This study investigated the placement of an intra-alveolar prosthesis of bone substitute on gingival/periodontal health in 5 ponies following repulsion of cheek teeth 108 and 208. In each pony, one randomly chosen alveolus was allowed to heal by second intention while the other was filled with a non-resorbable, biocompatible bone substitute. At 6, 12 and 24-months after surgery, both maxillary arches were evaluated for wear abnormalities and for gingival health using a periodontal scoring system.

Use of a synthetic bone substitute to retard molariform tooth drift after maxillary tooth loss in ponies.

Objective: To evaluate the effect of alveolar bone substitute on post-extraction drift of maxillary cheek teeth in ponies.

Study Design: In vivo longitudinal experimental study.

Animals: Five ponies (5-7 years) with a healthy dentition.

New method of sedation in oral surgery.

Local anesthesia, the well-known method of sedation, usually is insufficient for dental implantation and the augmentation of the alveolar ridge, because the operations last for 1 to 2 hours and patients may experience fear and strain. This article examines a new complex sedation method using ketorolac, midazolam, and a local anesthetic 4% solution of articaine hydrochloride and epinephrine (Septanest) in combination with a vasoconstrictor. This method was applied to 67 patients operated on for dental implantation with screw implants or for the alveolar ridge augmentation with biocompatible materials.

A prospective multicenter randomized clinical trial of autogenous bone versus beta-tricalcium phosphate graft alone for bilateral sinus elevation: histologic and histomorphometric evaluation.

Purpose: Two different graft materials, beta-tricalcium phosphate (Cerasorb) and autogenous bone, were used in the same patient. The objective was to determine whether donor site morbidity could be avoided by using pure-phase beta-tricalcium phosphate (Cerasorb).

Materials And Methods: Bilateral sinus grafting was performed on 20 selected patients; Cerasorb was used on the experimental side, and autogenous bone was used on the control side.

Long-term success of sinus augmentation using a synthetic alloplast: a 20 patients, 7 years clinical report.

An adverse architecture of the maxillary sinus is no longer a contraindication for implant placement. Grafting the sinus has become an accepted treatment modality. Techniques for lifting the sinuses are well documented and numerous articles have been published.

[Histologic and histomorphometric study of bone regeneration induced by beta-tricalcium phosphate (multicenter study)].

Introduction: Autogenous bone graft insertion can effectively enhance the regeneration of the debilitated bone. However, bone graft can be harvested only by a second surgery, which is inconvenient for the patient and raises the possibility of many complications.

Aims: The effect of an alloplastic bone-replacing material, beta-tricalcium phosphate and that of the autogenous bone graft were compared.

In search of the ideal bone graft.

This summary of materials used to replace bone describes polymer developments and suggests the route to finding the ideal graft material. This includes a look at the potential of bone morphogenetic proteins.