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At least 631 records · Page 35Linked to original sources
PubMed2001

Alveolar distraction: a possible new alternative to bone grafting.

Distraction osteogenesis is a new concept to periodontics that may replace the more traditional bone grafting techniques of onlay grafts and titanium membrane procedures. Distraction osteogenesis is not fraught with the complications of graft and membrane exposure or inadequate tissue coverage, which makes the distraction procedure an ideal technique to grow unlimited amounts of vertical bone height. This article describes a technique to grow new bone and soft tissue in a maxillary alveolar defect using a new technique called alveolar distraction osteogenesis. A case report is presented of the distraction procedure, reentry 6 months later, implant placement, and restoration.

Adult↗
PubMed2001

Root coverage and papilla reconstruction using autogenous osseous and connective tissue grafts.

Previous studies have reported that the distance from the interdental crest of bone to the apical portion of the contact of the two approximating teeth must be 5 mm or less to support a stable interdental papilla. The reconstruction of a stable, long-term papilla for esthetic purposes must therefore consider interdental bone reconstruction. Autogenous osseous graft material was harvested from the tuberosity and augmented with a subperiosteal connective tissue graft for papilla reconstruction between the maxillary central incisors. Flap design, osseous graft fixation with a screw, connective tissue placement, wound closure, and suturing techniques are presented. To enhance the final result, porcelain veneers were bonded to the approximating central incisors. This case report demonstrates a surgical procedure that has not been reported to date for papilla reconstruction to enhance periodontal esthetics.

Alveoloplasty↗
PubMed1995

Secondary bone grafting for unilateral alveolar clefts: a review of surgical techniques.

For the past 5 years we have been performing the closure of the oronasal fistula with alveolar bone grafting in the early-to-late secondary time period. The final decision as to whether early or late grafting should be done is based on if a grafting is needed to support the eruption of a functional lateral incisor. Generally the Moczair type buccal flap, with a "Z" release for wide clefts, is used for the buccal flap. This is combined with lateral releasing incisions on the palate for palatal closure. Separate nasal and oral closures are performed in all cases, with bone placed between the two layers in the alveolar defect. It is believed that this treatment sequence best fulfills the criteria for successful alveolar bone grafting outlined at the beginning of this chapter. Figure 8 demonstrates an alveolar bone grafting procedure in a 10-year-old girl just before eruption of the canine tooth treated with a buccal Moczair flap, lateral releasing incisions on the palate, two-layered closure, and the placement of an iliac bone graft.

Alveolar Process↗
PubMed2002

[Use of the trephine for harvesting bone from the iliac crest].

For closure of the cleft alveolus usually a choice between a bone graft from the chin or from the iliac crest is made. In the department of Oral and Maxillofacial Surgery of the University Hospital Groningen harvesting of bone from the iliac crest was performed with an open technique. From the results of an earlier study on the morbidity of this procedure until June 1997 it was found that in 26.1% of the cases a contour defect could be observed in the donor region. The mean width of the mature scar was 5.0 +/- 2.4 mm (range 1-10 mm). Especially these findings and the wish to further reduce postoperative pain led the University Hospital to start harvesting iliac crest bone grafts with a trephine in june 1997. In the period june 1997 through december 1999 iliac crest bone grafts were harvested in 28 cleft lip and palate patients (mean age 10.5 years; range 8-12 years) with this trephine technique. The scars were smaller in +/- 0.3 both length (mean 15 +/- 1.5 mm; range 11-24 mm) and width (mean 1.5 +/- 0.3 mm; range 1-3.5 mm). No contour defects and sensory loss occurred. Postoperative pain could adequately be relieved by local infiltration of the donor area with a 0.25% marcaïne solution and analgetics. On the first day post surgery all patients could be mobilised without problems. Based on these findings and recent literature it can be concluded that the use of the trephine is the method of choice for harvesting iliac crest bone in cleft lip and palate patients. Only when large amounts of bone, a bone block or a piece of cortical bone is needed, the open technique should be used.

Alveoloplasty↗
PubMed2002

[Intraoral autogenous onlay block bone grafting for implant dentistry].

The use of autogenous bone graft with endosseous implant for the reconstruction of alveolar ridge deficiencies has been reported with increasing frequency in the past two decades. These bone grafts were harvested mainly from extra oral sites. Various donor sites have been described in the literature including the calvarium, tibia and iliac crest, the latter being most common. Due to the need for hospitalization, general anesthesia and the great morbidity of surgery associated with these donor sites, alternative intra oral sources for graft harvest have been suggested. The most common sites for, being the mandibular symphysis and the mandibular ramus. For the repair of localized alveolar bone defects these donor sites are advantageous. In addition to the ease of donor site access and minimal morbidity, membranous bone grafts show less resorption, good incorporation and shorter healing times. The use of these bone grafts allow us to correct the alveolar ridge height, width and trajectory prior to implant placement thus not only enable a better surgical success, but also should enhance a better prosthetic results as well.

Alveolar Ridge Augmentation↗
PubMed2002

HVC ridge deficiency classification: a therapeutically oriented classification.

Alveolar ridge defects resulting from tooth extraction, trauma, or periodontal disease often require surgical correction prior to prosthodontic reconstruction. Whether implants or conventional fixed prostheses are planned, without careful consideration and proper treatment planning, hard and/or soft tissue defects may lead to functional, structural, or esthetic compromises in the final prosthesis. This article reviews the etiology and treatment of alveolar ridge defects and introduces a therapeutically oriented classification system of such defects (horizontal, vertical, and combination-HVC-classification). In addition, a decision-making guide for approaching each defect type will be discussed, and clinical examples of treated cases will be presented.

Alveolar Bone Loss↗
PubMed2002

Treatment of a juvenile patient with a maxillary all-ceramic resin-bonded fixed partial denture: a case report.

Treatment of juvenile patients with a missing maxillary incisor is difficult, because an implant cannot be placed until growth is completed. The other minimally invasive alternatives are also problematic: Removable dentures are rarely accepted by juvenile patients, and the conventional resin-bonded fixed partial denture often provides a poor esthetic result because the metal retainer causes the abutment teeth to lose their natural translucency and to become grayish. Moreover, the alveolar ridge defect makes it easy to identify the prosthesis in the pontic area. The present case report describes the prosthetic treatment of a juvenile patient who had lost a maxillary incisor to trauma. To avoid the disadvantages of conventional therapies, subepithelial connective tissue was grafted to reshape the alveolar ridge. The space was closed with an all-ceramic resin-bonded fixed partial denture.

Adolescent↗
PubMedDate not supplied

Zygomatic bone: an additional donor site for alveolar bone reconstruction. Technical note.

This article describes a procedure to harvest bone from the zygoma for alveolar bone reconstruction. A detailed description of the bone harvesting procedure and a preliminary report of 3 patients undergoing alveolar bone reconstruction and simultaneous dental implant placement in the maxillary anterior area is presented. The technique is indicated when a modest amount of bone is needed, for example, to cover exposed implant threads and expand a narrow alveolar ridge. It also could be used as an additional source of bone with other intraoral donor sites. Surgical access to the zygoma is simple and can be performed using local anesthesia. Postoperative complications after zygomatic bone harvest are minimal.

Adult↗
PubMed2002

Current concepts of periodontal regeneration. A review of the literature.

The purpose of this article is to provide a review of the various regenerative therapies and materials in use today, along with treatment and patient variables that may affect outcome predictability. Future direction in this ever-changing field is also discussed. Techniques currently in use are reviewed and evaluated. They include open flap debridement, the use of bone grafts and bone substitutes, guided tissue regeneration, combination techniques, root surface treatment and the use of biologics. Clinical and histological human studies employing the above-mentioned treatments are discussed. The advantages and disadvantages of each treatment modality are discussed, along with patient and local factors that have been shown to affect success rates.

Absorbable Implants↗
PubMed2002

Distraction osteogenesis: a treatment tool to improve baseline conditions for esthetic restorations on immediately placed dental implants--a case report.

Replacement of two adjacent teeth in an anterior maxilla with deficient hard and soft tissues appears to be the utmost challenge in implant dentistry in the esthetic zone. In this case report, baseline conditions for implant placement were improved by alveolar distraction to enhance hard and soft tissues around the maxillary central incisors. Three months after the active phase of distraction, the roots of the central incisors were extracted and two screw-type dental implants were immediately placed into the extraction sockets. For immediate provisionalization, acrylic resin crowns were fabricated on UCLA abutments, providing the ideal emergence profile to support the periimplant soft tissue. Six months after implant placement, the prosthetic restoration of the case was finished with ceramic crowns cemented to individually fabricated zirconium oxide abutments. The described treatment strategy appears to have a great potential to restore natural esthetics in cases with major tissue deficiencies in the esthetic zone.

Acrylic Resins↗
PubMed2002

Incomplete unilateral cleft of the primary palate: delayed secondary bone grafting combined with orthodontic treatment.

The presence of a fissural lateral incisor in an alveolar cleft is not a common occurrence and, if one is present, must in most instances be removed because of microdontia or because it may compromise a bone graft. This case report presents an example of bone grafting carried out late in the secondary stage of the patient's dentition, in conjunction with retention of the fissural lateral incisor as requested by the patient, and shows an acceptable outcome from the points of view of both aesthetics and dento-alveolar health.

Adolescent↗