[Effect of interdisciplinary cleft therapy on the nature and timing of maxillary cleft repair].
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Adolescent↗
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Results for “ALVEOLOPLASTY”
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Treatment of moderate localized alveolar ridge defects. Preventive and reconstructive concepts in therapy.
A conscious effort should be made at the time of tooth extraction to eliminate or lessen the creation of a defect within the residual alveolar ridge. This objective can be achieved if teeth are extracted in an atraumatic manner and appropriate implant materials are placed into the sockets to prevent the eventual collapse of the ridge. Guided tissue regeneration procedures also may be used to prevent collapse within the ridge or augment an existing defect. In many instances, deformed ridges can be augmented to their former dimensions by the use of pouch, interpositional, or onlay graft procedures. Case reports are presented to show the effectiveness of these procedures.
Alveolar Bone Loss↗
Preprosthetic surgery for the edentulous patients.
Preprosthetic surgery is a rapidly changing area of dentistry. A knowledge of the range, capabilities, and limitations of the commonly used surgical procedures is a must for anyone treating a patient who will receive a complete denture prosthesis. It cannot be overemphasized that the establishment of a clear treatment plan and close coordination of all parties involved in the reconstructive effort are essential to achieve the best overall result.
Alveolar Ridge Augmentation↗
[The role of autologous parietal bone graft in alveolar cleft].
Autologous bone grafting of alveolar clefts is a well recognized procedure. Calvarium represents an interesting donor site because of the absence of morbidity and the dimensional stability of this membranous bone compared with endochondral bone sources. The authors reponed their experiences with this type of grafting used in 17 patients. Referred to the parameters analized in an important Swedish study, the rate of success was about 80% agree with the results of other authors with the same type of graft. Aspects of general planning, timing, technique and failure are extensively discussed. Pre and post surgical orthodontic treatment is also very important for a good result. The pattern of maxillo-facial growth and the effect of the graft materials on facial development are mentioned. The study of literature indicates that the best grafting results are achieved when free autogenous mandibular symphyseal bone grafts were used. The only true disadvantage is the small quantity of bone tissue available. The authors conclude suggesting the use of chin bone grafting in situations where the technique provides sufficient bone and recommend the use of cranial vault as the alternative source of membranous bone graft, for example, in bilateral clefts, when anterior theeth are not erupted yet and in any other situation where the mandibular bone graft is not possible.
Adolescent↗
Alternate treatment options for restoring the posterior maxilla with implants.
Several techniques have been designed to overcome the anatomic limitations seen in the surgical placement of root form implants in the maxilla. The pterygoid plate implant, guided bone regeneration and sinus lifting procedures are three of those techniques. In all cases the objective is to eliminate removable dentures and excessively long cantilevered fixed restorations.
Alveoloplasty↗
[Value of anterior interalveolar osteotomies in the restoration of facial harmony].
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Adult↗
Soft tissue and marginal bone conditions at osseointegrated implants that have exposed threads: a 5-year retrospective study.
The purpose of this retrospective clinical investigation was to study possible soft tissue complications and marginal bone resorption related to exposed threads of osseointegrated Brånemark oral implants during a 5-year period. Group 1 comprised 27 patients with 38 test implants that had not become completely covered with bone at implant placement. Thirty control implants in 25 of the patients were each next to a test implant and had no exposed threads initially. Group 2 comprised 51 patients with 107 test implants that had developed marginal bone loss beyond the second thread, as judged radiographically at the first annual checkup. Forty-eight control implants showed no or minor marginal bone resorption up to the first thread. Initial marginal defects and fenestrations at Brånemark implants (group 1) did not lead to mucosal problems or progressive marginal bone resorption during the first 5 years of function. Moreover, bone resorption, seen after the first year of loading at initially completely bone-covered implants, did not lead to any specific soft tissue problems, nor did it result in any further progressive bone resorption during a subsequent 4-year period. Based on the observed low incidence of soft tissue pathology at implants with exposed threads, it is suggested that bone augmentation techniques in the situations studied be used with restriction.
Adolescent↗
Maxillary augmentation with a microvascularly anastomosed fibula: a preliminary report.
The high resorption rate of nonvascularized bone grafts can be appreciably slowed with the use of endosseous implants and implant-supported prostheses. In cases of extreme atrophy, graft fixation with implants is hardly possible. Especially in the presence of compromised overlying soft tissues, the consolidation of such a graft can also present problems. Improved results can be obtained through use of revascularized bone grafts. Such a method using an anastomosed fibula graft to augment the maxilla is illustrated by a clinical case. After harvesting the graft, the side to come into contact with the alveolar crest is denuded of periosteum, and cuneiform ostectomies are made into the graft to facilitate its adaptation to the maxillary arch. The graft is anastomosed to the facial vessels through an intraoral route and can be placed in such a way as to simultaneously correct any existing crossbite. In contrast to an iliac graft, the implants can be placed bicortically in a fibular graft.
Alveolar Ridge Augmentation↗
Times change.
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Alveolar Ridge Augmentation↗
[Secondary early osteoplasty of the maxillary alveolar process in the combined treatment of patients with bilateral congenital clefts of the upper lip and palate].
Gnathometric and roentgenocephalometric studies helped reveal the pathogenesis of abnormal maxillary growth in children with bilateral clefts of the upper lip and palate. In order to improve the results of treatment of such patients, the authors propose a method of secondary early osteoplasty of the alveolar process, which may be carried out simultaneously with uranoplasty or separately. Thirty-six patients were operated on using this technique. Complete repair of the alveolar process was attained in 58.3%, partial in 30.6% patients.
Alveolar Process↗
Reverse genioplasty.
The purpose of this investigation was to evaluate the possibility of correcting the appearance of a protruded or retruded chin through relocation of the anterior alveolar segment. Five patients with a protruded chin (group I) were treated by anterior repositioning of the alveolar segment, while five patients with a retruded chin (group II) were treated through posterior repositioning of the mandible. In the patients in group I, the convexity of the chin became less pronounced and the most anterior point of the soft tissue chin curvature (pogonion) moved superiorly. In the patients in group II, the convexity of the chin become more pronounced. The position of soft tissue pogonion was unchanged. The ratio of the segment-lip movement in both groups was close 1:1. The method is easy to perform and provides predictable results. For patients with a protruded chin, in whom reduction genioplasty often offers a poor result, the procedure described could be a method of choice.
Adult↗
A modification of the connective tissue graft procedure for the treatment of type II and type III ridge deformities.
Various grafting procedures have been developed for reconstruction of partially edentulous ridge deformities prior to prosthetic rehabilitation. The majority of these procedures have been applicable to reconstruction of Type I (buccolingual) ridge deformities. Type II and Type III defects present a more difficult challenge because of the need for apicocoronal augmentation and replacement of greater volumes of lost tissue. The onlay and subepithelial connective tissue grafts have been predominately used for the treatment of these type of defects, however, each procedure presents certain limitations. This report describes a simple modification of the connective tissue graft that enhances its ability to augment tissue for Type II and Type III deformities. The technique is an effective and predictable procedure for advanced ridge deformities.
Adult↗
Facial growth in primary bone grafted unilateral clefts.
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Alveoloplasty↗
Alveolar reconstruction with splitting osteotomy and microfixation of implants.
This report describes a surgical technique for reconstruction of the buccolingually reduced alveolar process. The technique involves the preparation of an artificial socket with immediate implant placement, which reduces total treatment time compared with two-stage procedures. Alveolar preparation comprises lamellar cortical splitting of the alveolus, interlamellar implant placement, and primary stabilization based on a microfixation technique. It was used for a wide range of indications involving single and multiple alveoli related to the partially dentate and the edentulous alveolar process. The results of 24 Branemark standard implants and 97 ITI implants with 44 consecutively treated patients have been reviewed with a mean observation time of 34.3 months (range 6 to 68 months). The main indicator for alveolar reconstruction was the narrow anterior maxillary arch. The 5-year cumulated success rate was 86.2%. Twelve implants failed during the observation period. The mean marginal bone loss was 1.7 mm (range 0 to 7.5 mm). There was a low infection rate compared with membrane-based GTR techniques. Treatment costs were low as a result of shorter treatment time.
Adolescent↗
The effect of alveolar bone grafting on the prosthodontic/reconstructive treatment of patients with unilateral complete cleft lip and palate.
This study compared the effect that the introduction of mixed dentition alveolar bone grafting and subsequent orthodontic treatment has had on the prosthodontic/reconstructive habilitation of patients with unilateral cleft lip and palate. Two groups, each consisting of 40 consecutive patients with unilateral cleft lip and palate, were compared at the end of their dental treatment. In the group treated prior to the advent of bone grafting, all subjects received a fixed partial prosthesis in the cleft area, and a total of 87 abutment teeth were prepared for complete coverage crowns. In contrast, in the group of patients for whom the alveolus was restored by bone grafting, it was possible to obtain a complete dental arch without prosthodontic intervention in 36 patients (90%). Thirteen subjects in the bone grafting group had the crown anatomy of anterior teeth modified using resin composite or resin-bonded porcelain veneers. Two patients had a premolar transplanted to the anterior region of the dental arch. On average the dental treatment was completed 3 years earlier in the bone grafting group. Thus, alveolar bone grafting with subsequent orthodontic treatment, together with advances in dental materials, have markedly reduced the need for prosthodontic procedures and have also allowed the completion of the dental treatment at an earlier age.
Adolescent↗
The use of gingivoperiosteoplasty in CUCLP.
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Alveoloplasty↗
Immediate labial contour restoration for improved esthetics: a radiographic study on bone splitting in anterior single-tooth replacement.
A bone-splitting technique used for anterior single-tooth replacement was evaluated in 54 patients and 68 sites. The cumulative rate of implant survival was 93.7% (SE 4.6%) after more than 4 years. The decrease in marginal bone height ranged from 0.8 to 1.3 mm. Some reaction of the bone levels around the adjacent teeth should be anticipated (0.3 to 0.5 mm). It was concluded that the bone-splitting procedure is a safe and predictable technique when performed carefully on selected patients and with the proper instrumentation. The procedure seeks to reconstruct the labial contour of the alveolar process, which is a prerequisite for optimal and lasting implant esthetics.
Adult↗
Periodontal healing in horizontal and vertical defects following surgical or non-surgical therapy.
The aim of the present study was to investigate any relationship between the level of oral hygiene and probing pocket depth reduction over time after periodontal treatment in sites with either vertical or horizontal destructions. The investigation was conducted as a retrospective study on a 3-year consecutive referral population of periodontitis-prone patients based on full-mouth oral radiographic examinations, probing pocket depth registrations and plaque scores. The analyses were performed on a final sample of 3064 sites in 107 patients with regression analysis after adjusting for dependence within the patient. Probing pocket depth was significantly less reduced over time in sites with vertical destructions compared to sites with horizontal destructions following non-surgical treatment. Furthermore, the difference in probing pocket depth reduction between vertical and horizontal defects following non-surgical treatment increased over time in sites with plaque compared to sites without plaque, thus reflecting the importance of the patient's plaque control, especially in sites with vertical destructions. However, the difference in probing pocket depth reduction between vertical and horizontal defects did not increase over time for surgically treated teeth, a finding which probably can be attributed to a more thorough debridement of vertical defects during surgery and/or osteoplasty/osteoectomy limiting the surface area upon which a long junctional epithelium can form, which may facilitate recurrence of a periodontal pocket.
Adult↗