This clinical report focuses on the challenges and solutions for a child subjected to craniofacial trauma from a wild hyena biting off his nose and anterior maxilla. Unique considerations in prosthodontics and biomedical engineering were required based on future craniofacial growth and development of the child. The physical requirement of a maximum retentive prosthesis for an active, athletic child required unique engineering designs and executions.
View Article and Find Full Text PDFPurpose: The purpose of this study is to analyze the frequency and elevate the awareness of the prevalence of nondental pathology in cone beam computed tomography (CBCT) scans taken for implant placement treatment planning and postplacement evaluation. The data from the CBCT should be read by an oral and maxillofacial radiologist for proper diagnosis of dental and nondental pathology and referred to the medical specialist for proper management when necessary.
Materials And Methods: This retrospective study analyzed 1002 consecutive CBCT scans taken at a single private practice noting the prevalence of nondental pathology in CBCT images for all dental implant procedures.
Mandibular complete-arch fixed implant-supported prostheses are recognized as one of the earliest and most popular prostheses in implant dentistry. This prosthesis was the main focus in the early era of osseointegration. Despite its widespread popularity, few clinical reports have described long-term follow-up greater than 10 years for this type of prosthesis.
View Article and Find Full Text PDFInt J Periodontics Restorative Dent
April 2019
Osseointegrated dental implants have become an integral factor in the replacement of missing teeth. These implants have demonstrated long-term success for periodontally compromised patients, who require a high level of success to maintain a sense of optimism. This case report offers 32-year results of implant treatment in the maxilla and 25-year results in the mandible.
View Article and Find Full Text PDFPurpose: Acrylic resin teeth on fixed implant prostheses are subject to time-dependent wear. The purpose of this retrospective analysis is to evaluate and describe the management of such wear in the context of selected variables--patient gender and age, dental arch location, and opposing dentition. The clinical and dental laboratory process to replace the worn teeth is defined as a retread.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
June 2016
Purpose: To retrospectively analyze the survival rate of endosseous dental implants placed in the edentulous or partially edentulous mandible over a long-term follow-up period of 10 years or more.
Materials And Methods: The charts of patients who underwent mandibular implant placement at a private prosthodontics practice and received follow-up care for 10 years or more were included in this study. Implants were examined according to the following study variables: patient sex, patient age, degree of edentulism (fully vs partially edentulous), implant location, time of loading (delayed vs immediate), implant size and type, bone quality, prosthesis type, and the presence of other implants during placement.
Positioning handles and occlusal locks have evolved as improvements to the Teeth-in-a-Day protocol. These improvements have enabled a more accurate alignment of the removable dental prosthesis during the conversion prosthesis technique. These improvements can be easily incorporated through computer-aided design and computer-aided manufacturing digital denture fabrication process.
View Article and Find Full Text PDFThe technique for fabricating an accurate implant master cast following the 12-week healing period after Teeth in a Day® dental implant surgery is detailed. The clinical, functional, and esthetic details captured during the final master impression are vital to creating an accurate master cast. This technique uses the properties of the all-acrylic resin interim prosthesis to capture these details.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
December 2015
Patients missing portions or all of the maxillary alveolar bone who are restored with zygomatic implants frequently have threads exposed that can be a mucosal irritant. If such irritation is reported, covering the threads with a highly polished titanium sleeve is recommended. The technique of placing said custom sleeve is described.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
July 2015
A gunshot injury is one of the main trauma injuries that affect the head and neck region. Severe esthetic, functional, and psychologic deficiencies are consequences of gunshot injuries. The use of implants anchored in the zygomatic bone has been advocated as an approach to the prosthetic rehabilitation of a severely deficient maxilla.
View Article and Find Full Text PDFThe widespread use of oral implants in recent years has resulted in various types of complications. One of those complications is the periapical implant lesion. Different factors have been proposed to play a role in the development and emergence of a periapical implant lesion.
View Article and Find Full Text PDFPurpose: To describe 2 different treatment approaches for a 20-year-old Caucasian man and his 22-year-old sister who were affected by ectodermal dysplasia (ED) and compromised maxillary bone.
Materials And Methods: The sister had a history of an iliac crest transplant with 6 implants placed in the maxillary and mandibular arches, 6 years before complications. It was necessary to debride the right sinus, remove the failing infected bone graft and 2 implants.
Purpose: Implants that engage the cortical bone of the pterygomaxillary region help restore dentition to the posterior maxilla. However, proper implant length is required. The purpose of this study was to determine if there is a statistically significant difference in the survival rates between different sized implants placed in the pterygomaxillary region.
View Article and Find Full Text PDFPurpose: The purpose of this study was to retrospectively evaluate implant survival rates in patients treated with the All-on-Four™ protocol according to edentulous jaws, gender, and implant orientation (tilted vs. axial).
Materials And Methods: All Brånemark System implants placed in patients following the All-on-Four™ protocol in a single private practice were separated into multiple classifications (maxilla vs.
Purpose: The aims of this study were (1) to evaluate long-term changes in bone height beneath mandibular screw-retained implant-supported prostheses with distal cantilevers and (2) to determine whether the reversal of residual ridge resorption in the posterior mandible is temporary or continues over the long term.
Materials And Methods: Panoramic radiographs, obtained at surgery and at two follow-up visits, of 81 patients rehabilitated with mandibular screw-retained implant-supported prostheses with distal cantilevers supported by four, five, or six implants were followed for 5 to 19 years (overall mean follow-up, 9.00 years.
Purpose: Implants placed into the pterygomaxillary region allow for increased posterior support and a full complement of teeth without the need for distal cantilevers. With advancements in research and technology, implant delivery has evolved from the traditional two-stage procedure to immediate loading freehand and guided surgical template protocols. The purpose of this retrospective study is to determine if there is a significant difference in implant survival rates between these protocols.
View Article and Find Full Text PDFCompend Contin Educ Dent
October 2012
Patients with advanced atrophy of the maxilla benefit greatly from the use of dental implants. In the past, protocols recommended highly invasive bone grafting, which required months of maturation before implant placement. Over the past decade, zygoma implants have been used as an alternative procedure.
View Article and Find Full Text PDFPurpose: Specifically with zygomatic implants, the bone-to-implant contact (BIC) at the zygomatic bone correlates with the survival of the implant because there is little anchorage at the alveolus. The purpose of this retrospective study was to view and measure the BIC of zygomatic implants in the zygomatic bone.
Materials And Methods: The patients in this study received zygomatic implants at a single private dental implant center.
A 64-year-old totally edentulous female initially presented with ill-fitting removable prostheses. A comprehensive treatment plan with dental implants was accepted by the patient. Clinical and laboratory procedures were executed using various computer technologies including computed tomography, rapid prototyping, and optical scanning using conoscopic holography.
View Article and Find Full Text PDFThis patient report describes the treatment of a 45-year-old Caucasian woman with cleidocranial dysplasia who had significant dental problems that greatly affected her quality of life. The patient had orthodontic treatment in her earlier years along with surgical removal of supernumerary teeth. Using implants, the maxillary and mandibular arches were restored with fixed screw-retained prostheses.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
April 2011
Purpose: The purpose of this study was to analyze retrospectively the survival rate of implants used in pairs to support a single molar crown over a long-term follow-up period and to compare the efficacy of this technique to other existing methods of treatment.
Materials And Methods: The charts and radiographs of 105 patients who each received two implants to support a screw-retained single molar were examined according to the following criteria: age, gender, location of implant, time of loading (delayed versus immediate), opposing dentition, and the existence of adjacent implants.
Results: Patients with follow-up between 3 and 12 years were selected to illustrate the long-term outcomes of the two-implant replacement procedure.
Computer-aided design/computer-assisted manufacture technology is changing the way clinicians are planning treatment and delivering dental implant therapy. Although the current technology is impressive and successful clinically, there are limitations in the design that prevent all patients from benefiting immediately from this computer-designed modality. This article describes a unique prosthetically driven protocol that will allow the delivery of a prefabricated screw-retained all-acrylic prosthesis immediately after an alveoplasty with the immediate placement of dental implants.
View Article and Find Full Text PDFPurpose: The purpose of this prospective study was to evaluate the viability of immediately provisionalized single-tooth implants.
Materials And Methods: One hundred forty patients (86 female, 54 male) with a mean age at implant placement of 45 years (range, 15-88 years) needing single-tooth replacement, were treated between July 1999 and December 2004. Single-tooth implants were placed and provisionalized the day of the surgery.