Journal of Oral Implantology September 2012 - (Page 497)

CASE REPORT Implant-Prosthetic Rehabilitation of a Patient with Nonsyndromic Oligodontia: A Clinical Report Gulfem Ergun, DDS, PhD* Isil Cekic-Nagas, DDS, PhD Oligodontia is defined as the absence of 6 or more permanent teeth due to the hypodevelopment of tooth germs. This familial abnormality is attributable to various mutations or polymorphisms of genes and associated with malformative syndromes. This clinical report presents the multidisciplinary dental treatment planning for a 27-year-old woman who exhibited oligodontia. After radiographic and clinical evaluations, 7 retained primary teeth and 2 mandibular third molars were extracted. Three dental implants were placed into the maxillary alveolar process. After the osseointegration period, complete-arch fixed prostheses in both maxilla and mandible, supported by a combination of implants and teeth, were fabricated. Osseointegration of the implants, peri-implant mucosa health, and prosthesis function were assessed every 6 months. At the end of the 3-year clinical follow-up, the patient was satisfied with the esthetics, function, and phonation of her prosthesis. To attain the best esthetic and biological results, an interdisciplinary approach could be used to synergistically combine surgery and restorative dentistry for the restoration of maximal esthetics and function. Key Words: dental implants, oligodontia, implant-supported prosthesis INTRODUCTION ongenital absence of teeth is considered to be common, and the prevalence in the population ranges from 0.08% to 1.1%, excluding the third molars.1,2 The situation results from disturbances during the initial stages of tooth formation: initiation and proliferation.3 A number of terms have been used to describe the congenital absence of teeth in the primary or permanent dentition.4 Agenesis of 6 or more permanent teeth, defined as oligodontia, is a common developmental dental anomaly in human beings.1,3,4 Oligodontia can be found as an isolated nonsyndromic trait or as part of a malformative syndrome, such as ectodermal dysplasia, BlochSulzberger, Down, Robinson’s, Gorlin’s, hypertrichosis, orofaciodigital, chondroectodermal dysplasia, Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey. This study was presented at the ITI World Symposium 2010, in Geneva, Switzerland, on April 15–17, 2010. * Corresponding author, e-mail: DOI: 10.1563/AAID-JOI-D-10-00120 C Rieger’s, and PHC syndrome.1,3,5 So far, mutations in the MSX1 or the PAX9 genes have been identified as a possible cause for nonsyndromic oligodontia.6 In most cases, it is transmitted as an autosomal dominant, autosomal recessive, or X-linked genetic condition.3,7,8 Additionally, oligodontia may result in such anomalies as delayed tooth formation, taurodontism, and, eventually, deciduous retained teeth, atrophy of the alveolar ridge, and aberrations of teeth dimension and shape.1,7 Patients with oligodontia may have psychological, esthetic, and functional problems.4,7 Thus, early diagnosis and treatment are important, though treatment options depend on the severity of the case.9 Correction of this anomaly aims for complete esthetic and functional rehabilitation and takes an interdisciplinary approach, including various prosthetic, orthodontic, and surgical treatments.1 Prosthetic treatments, including implants, removable prostheses, fixed dentures, and adhesive techniques have been proven effective in the management of these patients.7 Insertion of dental implants in children or adolescents before the regular growth process of Journal of Oral Implantology 497

Table of Contents for the Digital Edition of Journal of Oral Implantology September 2012

American Academy of Implant Dentistry Foundation Supports Basic and Clinical Research
Evaluation of 3- to 8-Year Treatment Outcomes and Success Rates With 6 Implant Brands in Partially Edentulous Patients
Histometric Analysis of Bone Repair in Bone-Implant Interface Using a Polylactic/ Polyglycolic Acid Copolymer Associated With Implants in Rabbit Tibia
Fold-Over Flap Technique for Developing the Facial Gingival Contour: A Case Report
Rehabilitation of the Atrophic Posterior Maxilla With Pterygoid Implants: A Review
Immediate Loading of Maxillary and Mandibular Implant-Supported Fixed Complete Dentures: A 1- to 10-Year Retrospective Study
Immediate Loading of Single Post-Extractive Implants in the Anterior Maxilla: 12-Month Results From a Multicenter Clinical Study
Immediate Implants After Enucleation of an Odontogenic Keratocyst: An Early Return to Function
Effects of Different Abutment Connection Designs on the Stress Distribution Around Five Different Implants: A 3-Dimensional Finite Element Analysis
Implant-Prosthetic Rehabilitation of a Patient with Nonsyndromic Oligodontia: A Clinical Report
Planning for Immediate Loading of Implant-Supported Prostheses: Literature Review
Development of a Rat Model of Bisphosphonate-Related Osteonecrosis of the Jaw (BRONJ)
Anorganic Bovine-Derived Hydroxyapatite vs β-Tricalcium Phosphate in Sinus Augmentation: A Comparative Histomorphometric Study
Peripheral Giant Cell Granuloma Associated With Dental Implants: Clinical Case and Literature Review
Bilateral Vertical Ridge Augmentation With Block Grafts and Guided Bone Regeneration in the Posterior Mandible: A Case Report
Cell Culture–Based Tissue Engineering as an Alternative to Bone Grafts in Implant Dentistry: A Literature Review

Journal of Oral Implantology September 2012