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Biomedical subjects

Stephen M Parel

Publications and source records attributed to Stephen M Parel.

8 recordsLinked to original sources
PubMed2006

Immediate placement and immediate provisional abutment modeling in anterior single-tooth implant restorations using a CAD/CAM application: a clinical report.

A patient underwent immediate implant placement and immediate provisional restoration with nonocclusal loading in the right central incisor area. A provisional custom abutment and a cemented provisional restoration were fabricated. At the impression appointment, an implant level impression was made and the provisional abutment was scanned for fabrication of the definitive custom abutment. This clinical report describes how CAD/CAM technology can facilitate the definitive restoration of immediately placed and loaded implants by allowing the fabrication of the definitive abutment as an exact duplicate of the provisional abutment.

Adult↗
PubMed2005

Early clinical experience with a new one-piece implant system in single tooth sites.

PURPOSE: To evaluate the clinical efficacy of a new 1-piece implant in single tooth sites. MATERIALS AND METHODS: Early clinical results were evaluated through observation and collection of survival data for 45 1-piece Direct implants (Nobel Biocare, Yorba Linda, CA). Patients ranged in age from 19 to 54 years, of which 23 were women and 12 were men. Both anterior and posterior single tooth defects were treated, with the majority being in the maxillary anterior zone. Five of the 45 implants placed were in immediate extraction sites. Observation periods ranged from 2.5 to 32 months. RESULTS: One implant failure was detected over the observation period. It occurred in a maxillary lateral incisor site, and was placed and immediately loaded after tooth extraction. The overall success rate was 97.8%. CONCLUSION: Within the limited parameters of this study, it can be concluded that the 1-piece implant design can be used effectively as a basis for restoring single tooth defects. Longer observation periods, more detailed soft tissue analysis, and larger numbers of implants in varied arch sites will be required to establish definitive protocols for the use of this implant.

Adult↗
PubMed2004

Interactive imaging for implant planning, placement, and prosthesis construction.

PURPOSE: This review describes a new interactive imaging program that allows computed tomography (CT) images to be used to virtually place dental implants and construct a precise guide splint and final prosthesis for delivery at the time of implant placement. MATERIALS AND METHODS: Patients with edentulous arches were recruited to participate in a trial program to assess the feasibility of using CT images in a 3-dimensional image-based program (Oralim; Medicine NV, Belgium) for planning and placing dental implants. Patients meeting the criteria received a CT of the appropriate arch using a denture with radiopaque markers indexed to the opposing arch. Acquisition slices of 0.6 mm or less was required. The software allowed precise planning for implant placement after which the planned case was sent to a manufacturing facility for splint and prosthesis construction. RESULTS: The guide splint and final prosthesis were returned to the clinical site for implant placement. An implant map was provided for each patient showing the diameter and length of the implant and abutments to be used in each predetermined implant site. The surgery was accomplished without a flap, and the prosthesis was delivered immediately. Occlusion required only minor adjustments in all cases, and immediate function was accomplished. CONCLUSION: Interactive computer imaging can allow precise planning for implant position and the images can be used for guide splint and final prosthetic fabrication prior to surgery. This technology is powerful, easy to use, and is a significant advance in implant dentistry.

Computer-Aided Design↗
PubMed2003

The single-piece milled titanium implant bridge.

This new implant technology is part of the Procera product line (Nobel Biocare), and is available through a growing network of dental laboratories. It offers the possibility of a consistently excellent passive fit compared with conventional casting techniques, and essentially eliminates the labor intensive process of sectioning and soldering sometimes associated with gold alloy castings. Eliminating the distortion commonly associated with multiple firings of long-span ceramic restorations is also a significant benefit.

Computer-Aided Design↗
PubMed2002

A system for definitive restoration of single-stage implants in one day.

While the Novum system does not offer a solution for immediate loading and restoration of mandibular implants in all patients, it is a valuable treatment option for many individuals. Although the surgery is precise and labor intensive, the fact that no additional (stage 2) surgery is necessary, and that a definitive restorative outcome is possible in a single working day, makes this an appealing treatment option. Current results with this technique in the United States are favorable but short term. Experience in Europe, however, appears to validate this technique, with results that are comparable with the well-documented 2-stage approach.

Dental Implantation, Endosseous↗
PubMedDate not supplied

Bone reduction surgical guide for the Novum implant procedure: technical note.

The Novum System offers a unique opportunity to create a definitive, immediately loaded fixed prosthesis on the edentulous mandible for patients who meet specific presurgical criteria. Since this system is based on precisely placed implants and prefabricated bar structures, the surgical techniques are critical in obtaining a satisfactory result. It is especially important that the bone reduction required to create space for the implants and bar assembly be in the proper plane and deep enough to leave room for eventually setting and processing teeth. The surgical guide described here can be an important adjunct during bone reduction to assure proper spatial positioning of the preformed titanium bars. Mounted casts of the correct or corrected maxillary dentition and mandibular arch are required at the appropriate vertical dimension of occlusion. The mandibular cast is reduced in prescribed dimensions to allow the subsequent creation of a processed resin surgical guide for use during the initial stages of surgery. This guide, when used for bone reduction during surgery, eliminates the arbitrary removal of osseous structure and helps assure the plane of implant placement is appropriate for each patient. When used routinely, a significant complication of the Novum procedure can be minimized or eliminated completely. Setting of teeth and processing are subsequently simplified, especially in the posterior dimensions, with this guide technique.

Dental Arch↗
PubMedDate not supplied

Rescue procedure for the Brånemark Novum protocol.

The Brånemark Novum protocol for immediate functional loading of a mandibular fixed implant-supported prosthesis has been an effective alternative for selected patients. In the event of the loss of an implant, a rescue set that allows continuous use of the original fixed restoration while restoring tripod osseointegrated support at the implant level is available.

Dental Implantation, Endosseous↗