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Biomedical subjects

E E Keller

Publications and source records attributed to E E Keller.

At least 19 recordsLinked to original sources
PubMed2002

Craniofacial and dental manifestations of Proteus syndrome: a case report.

The Proteus syndrome is a rare congenital hamartomatous condition that is characterized by a wide range of malformations, sometimes involving the face. Common manifestations include partial gigantism, congenital lipomas, and plantar hyperplasia. In this report we describe the craniofacial clinicopathological development in a girl with Proteus syndrome from age 6 to 20 years. The patient had pronounced hemifacial hypertrophy, exostoses in the left parietal region, and enlargement of the inferior alveolar nerve and mandibular canal in the affected region. The dental development of the affected left mandible and maxilla was characterized by extremely premature development and eruption of the primary and permanent teeth and by pronounced idiopathic root resorptions. The multidisciplinary management of the patient and the treatment outcome is reported. A review of the Proteus patients in the literature who exhibited manifestation in the craniofacial region is presented.

Adolescent↗
PubMed1997

Implant reconstruction in the posterior mandible: a long-term retrospective study.

STATEMENT OF PROBLEM: Because there is a lack of long-term data, it is unclear whether the determinants of implant and prosthesis survival include the location, angle, design, or number of implants and use of prosthesis cantilevers. PURPOSE: This retrospective study evaluated the long-term outcome, determinants of outcome, and the type and prevalence of prosthetic complications in a series of patients treated consecutively with Brånemark implants in the partially edentulous posterior mandible. MATERIAL AND METHODS: A total of 392 consecutively placed Brånemark implants were inserted in 152 partially edentulous patients and restored with 56 single-tooth and 168 fixed partial dentures restorations. RESULTS: The cumulative success rates of implants and prostheses were 89.0% +/- 0.03% and 81.9% +/- 0.03%, respectively, at 6 years, with no further decrease in success noted during the remainder of the 10-year study. Significantly fewer major complications were found in prostheses supported by one or more implants, located exclusively in premolar sites, versus prostheses supported by either molar implant(s) or both premolar and molar implants. In single-tooth restorations, fewer major complications were seen in the cemented restorations, compared with the screw retained. CONCLUSION: The results were strongly influenced by the phase of experience.

Adolescent↗
PubMed1996

Endosseous implants in an irradiated tissue bed.

Endosseous implants have been placed at the Mayo Clinic Department of Dental Specialties for over 12 years. On the basis of the clinical success of the osseointegration program, the use of implants has been expanded to include placement into tissue beds that have been exposed to therapeutic radiation. This article details preliminary data regarding implant survival in the previously radiated tissue beds. Presurgical evaluation and surgical technique are described and postprosthetic reconstruction complications are also related. Consideration is given to the relatively small number of patients in this review. It is suggested that the results should be shared among multiple institutions to create a meaningful data bank.

Dental Implantation, Endosseous↗
PubMed1994

Maxillary antral and nasal one-stage inlay composite bone graft: preliminary report on 30 recipient sites.

A one-stage antral and nasal inlay composite bone grafting procedure is described. Preliminary statistical data (1 to 6 years experience with the procedure) is presented for 30 recipient sites in 20 patients. A complete bone-supported fixed prosthesis was used and has provided continuous function in all patients to date. Implant survival has approached that of implants placed in uncompromised maxillary or mandibular bone.

Bone Transplantation↗
PubMed1993

Modified mandibular body step osteotomy-ostectomy.

The mandibular body osteotomy, introduced in 1906, remains a versatile operation with predictable results. In this paper, a modification of the mandibular step osteotomy-ostectomy and its use in two patients are described.

Adolescent↗
PubMed1992

Mandibular ridge augmentation with simultaneous onlay iliac bone graft and endosseous implants: a preliminary report.

Mandibular onlay composite grafts (autogenous iliac bone and titanium cylindrical threaded endosseous dental implants) were placed in seven patients with advanced bone resorption. All seven patients have experienced uncomplicated healing and continuous, uninterrupted prosthesis use without soft tissue or mechanical complications for 1 to 4 years. This preliminary report includes a discussion of the indications for the procedure, potential alternative management of the severely resorbed mandible, and details of the surgical procedure illustrated by two patients who received this treatment modality.

Alveolar Bone Loss↗
PubMed1991

Management of mandibular fractures in patients with endosseous implants.

Seven patients who had previously received mandibular endosseous implants sustained mandibular fractures and were treated. Three patients had advanced bone resorption and developed stress fractures through previous endosseous implant sites. Two patients sustained fractures through implant sites via trauma. Two patients sustained fractures anatomically separated from the implants, which caused an alteration in the dental occlusion. This report describes the treatment approach for these seven patients and reviews the treatment philosophy and procedures involved. A conservative treatment approach is advised when the fracture transverses through a stable or a recently failed implant site.

Accidental Falls↗
PubMed1991

Endosseous implant placement immediately following dental extraction and alveoloplasty: preliminary report with 6-year follow-up.

The philosophy of retaining natural teeth as long as possible for the preservation of alveolar bone has been a fundamental concept of dental treatment. With the introduction of predictable osseointegrated implant-supported prostheses, placement of an implant immediately after dental extraction can be considered. This paper discusses the technique of implant placement immediately following dental extraction. Clinical experience including 61 patients with follow-up of 1 to 6 years is reported.

Alveolar Bone Loss↗
PubMed1990

Quadrangular Le Fort I osteotomy: surgical technique and review of 54 patients.

Technical aspects and indications for the quadrangular Le Fort I osteotomy are described. The records of 54 consecutive patients who underwent this procedure for primary correction are reviewed in general terms, and those of 3 patients with significant follow-up are presented in some detail. The procedure gave predictable results, provided acceptable midfacial aesthetic improvement, and was surgically reproducible with few complications. Low surgical and postoperative morbidity was documented. This procedure was used in a similar patient population as the quadrangular Le Fort II osteotomy, and the rationale for choosing between these two procedures is discussed.

Adolescent↗