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At least 199 records · Page 11Linked to original sources
PubMed2002

A long-term follow-up study of non-submerged ITI implants in the treatment of totally edentulous jaws. Part I: Ten-year life table analysis of a prospective multicenter study with 1286 implants.

In this prospective multicenter study, non-submerged ITI implants were followed in order to evaluate their long-term prognosis in fully edentulous jaws. A total of 1286 implants were inserted in 233 consecutive patients and, after a healing period of three to six months, the successfully integrated implants were restored with 163 overdentures and 95 fixed full-arch bridges. This prospective study not only calculated the 10-year cumulative survival and success rates for the 1286 implants by life table analysis, but also evaluated the actual survival and success rates for 498 implants after at least five years of functional loading. In addition, cumulative success rates were calculated for implant subgroups according to implant length and location. Additional analyses were performed to evaluate the estimated and actual survival and success rates of the implants in relation to various prosthetic rehabilitation techniques. The 10-year cumulative survival and success rates were 95.9% and 92.7%, respectively. The actual 5-year survival and success rates of the first 498 implants that were inserted were 97.7% and 95.0%, respectively. The analysis of implant subgroups showed slightly more favourable cumulative success rates for 12 mm long implants (93%), in comparison to 10 mm and 8 mm long implants (91.6% and 89.6%, respectively). The cumulative success rate for mandibular implants (approximately 94%) was also more favourable than that for maxillary implants (approximately 91%). Patients who were loaded with both maxillary and mandibular prostheses maintained success rates well above 90%; while only implants that were inserted to support maxillary overdentures that were retained by Dolder bars showed a success rate below 90%.

Adult↗
PubMed1999

Dental implants. 7. Basic restorative techniques.

Some restorative techniques for implant supported restorations will be familiar to dentists used to providing conventional crown and bridgework. The differences and principles involved when using implants are identified.

Dental Abutments↗
PubMed1991

Osseointegration and the edentulous predicament. The 10-year-old Toronto study.

This prospective study at the University of Toronto reports the 5-10-year results of treatment of edentulous patients with osseointegrated implant supported bridges. It comprised 46 consecutively treated patients, chosen because optimisation of traditional prostheses was not successful and because they were in sufficiently good health to allow minor out-patient surgery. Two hundred and seventy-four implants were surgically placed in 49 arches (three patients were treated in both arches) between October 1979 and March 1984. At the end of the 5-10-year observation period, 242 (88.32%) of the implants remained osseointegrated and 233 or 85.04% of these implants were used to support 43 fixed bridges and five overdentures. Nine implants, though osseointegrated, were not exposed and were not used to support the prostheses. Forty-eight of the 49 arches continue to be successfully restored with implant retained prostheses.

Adult↗
PubMed1992

The clinical use of ITI transmucosal implants.

The ITI implant system has a background of research and development of over 15 years. It is distinctive in that the implant fixtures are transmucosal from the time of placement, requiring only a single stage in surgical treatment. In a relatively simplified approach to prosthetic management, standard overdenture components and conventional fixed partial denture techniques are used. In this report the assessment, surgical treatment and post-operative management of patients using ITI Bonefit implants are described and early results from 168 consecutive fixtures placed over a period of 3 years indicated.

Adult↗
PubMed1996

Follow up and maintenance of implant supported prostheses: a comparison of 20 complete mandibular overdentures and 20 complete mandibular fixed cantilever prostheses.

Two independently selected groups of 20 patients who were edentulous in te mandible, were followed up on a regular basis over a 5-year period following restoration with a lower implant stabilised prosthesis and conventional upper denture. Significantly more treatment was required by those who received complete mandibular overdentures than those provided with complete fixed mandibular prostheses. In addition to adjustment for the relief of denture trauma to the mucosa, more mechanical problems arose with overdenture implant prostheses.

Dental Abutments↗
PubMed2006

Transitioning patients from teeth to implants.

One major obstacle to treatment with implants is the transitional phase between a tooth supported occlusion and an implant supported occlusion. This is of particular concern when a patient with a failing dentition has not worn a removable prosthesis before and is planning to have a reconstruction supported by implants.

Dental Abutments↗
PubMed2003

Early loading of endosseous implants in the augmented maxilla: a 1-year prospective study.

In 10 patients, 68 endosseous implants were inserted in the augmented edentulous maxilla using a one-stage implant placement technique. Three months before implant insertion, the width and height of the alveolar crest were augmented with autologous bone grafts from the iliac crest. In all cases, the resulting bone volume was sufficient for implant insertion. According to an early loading protocol, the implant-supported overdenture was fabricated 2 months after insertion of the implants. Evaluation was performed according to a standardised protocol immediately and 1 year after fabrication of the prosthetic construction. The protocol included assessment of both clinical (bleeding score, pocket depth, implant mobility) and radiographic (marginal bone level on standardised radiographs) parameters. Three implants in two patients in the upper jaw were lost (survival rate: 95.6%). The peri-implant tissues had a healthy appearance and bone loss was minimal. Overall, the patients were very satisfied with the prosthetic construction. From this preliminary study, it is concluded that in selected cases, early loading of implants may develop into a predictable treatment modality after augmentation of the maxilla.

Adult↗
PubMed1999

Peri-implant tissue health in reconstructed atrophic maxillae--report of 88 patients and 470 implants.

The aim of this study was to evaluate the soft-tissue health around 470 implants placed in the upper jaw of 88 patients with severe maxillary atrophy. All patients underwent a reconstruction procedure which included a composite bone grafting from the iliac crest to the maxillary sinus. Evaluation was performed at a mean implant lifetime of 21.6+/-10.9 months. The following parameters were used: probing depth, plaque-, gingival-, bleeding index and width of the buccal keratinized mucosa. They were calculated as means for each implant and related to the type of superstructure and the thickness of the original sinus floor. (higher or lower than 5 mm). A high percentage of bleeding on probing was observed in obviously clinically healthy peri-implant pockets. Bleeding on probing and deeper probing depth were especially observed in the group with severe maxillary atrophy (less than 5 mm initial height of the sinus floor.) There was a significant increase in mean peri-implant probing depth and gingiva index in overdentures versus fixed bridges. No differences were observed with respect to the width of the keratinized buccal mucosa. It was concluded that implants in the reconstructed maxilla and supporting overdentures had a higher risk for bone loss, based on the worse peri-implant tissue health observed.

Adult↗
PubMed1999

A clinical evaluation of 76 implant-supported superstructures in the composite grafted maxilla.

The aim of the study was to evaluate the material behaviour and nature of implant-supported superstructures in function. A total of 37 overdentures, 26 fixed partial and 13 fixed full dentures with a mean lifetime of 40 months were clinically evaluated in relation to damage, occlusion and articulation, parafunction, retentive devices, hygiene and speech problems. In general 70% of all superstructures were damaged. Fixed partial dentures were significantly less damaged than overdentures and fixed full dentures (P<0.001). A significant high percentage of newly gained parafunction was found (P<0.05).

Adult↗
PubMed2002

Consequences of oral rehabilitation on dyskinesia in adults with Down's syndrome: a clinical report.

The aim of this article is to demonstrate that the presence of orofacial dyskinesia is often owing to underlying facial dysmorphology in persons with Down's syndrome. A series of cases is presented where orofacial dyskinesia was successfully treated by therapy establishing occlusal stability. The diagnosis of dyskinesia owing to dysmorphology should be precluded before any link with the degree of intellectual disability or neurological deficit is presumed. A multidisciplinary approach may be necessary to diagnose and treat these patients.

Adolescent↗
PubMed2002

Complications and failures in removable partial dentures: a clinical evaluation.

The design of removable partial dentures (RPDs) is an important factor for good prognostication. The purpose of this study was to clarify the effectiveness of denture designs and to clarify the component that had high rates of failure and complications. A total of 91 RPDs, worn by 65 patients for 2-10 years, were assessed. Removable partial dentures were classified into four groups: telescopic dentures (TDs), ordinary clasp dentures (ODs), modified clasp dentures (MDs) and combination dentures (CDs). The failure rates of abutment teeth were the highest and those of retainers were the second highest. The failure rates of connectors were generally low, but they increased suddenly after 6 years. Complication and failure rates of denture bases and artificial teeth were generally low. Complication and failure rates of TDs were high at abutment teeth and low level at retainers. Complication and failure rates of ODs were high at retainers.

Adult↗
PubMed2000

Overdenture abutments for fixed partial dentures.

Despite universal acceptance for retaining endodontically treated and filled roots for vertical support of removable prostheses, there is little evidence for the use of overdenture abutments with fixed prostheses. This article presents a review of clinical situations for using these teeth to support fixed partial dentures. These teeth provide vertical support during function and preserve alveolar bone levels.

Dental Abutments↗
PubMed2001

A patient-based assessment of implant-stabilized and conventional complete dentures.

STATEMENT OF PROBLEM: Outcomes of oral implant therapy have been described primarily in terms of implant survival rates and the durability of implant superstructures. Reports of patient-based outcomes of implant therapy have been sparse, and none of these studies have used oral-specific health status measures. PURPOSE: This study assessed the impact of implant-stabilized prostheses on the health status of complete denture wearers using patient-based, oral-specific health status measures. It also assessed the influence of preoperative expectations on outcome. MATERIAL AND METHODS: Three experimental groups requesting replacement of their conventional complete dentures completed an Oral Health Impact Profile (OHIP) and a validated denture satisfaction scale before treatment. One group received an implant-stabilized prosthesis (IG), and 2 groups received new conventional complete dentures (CDG1 and CDG2). After treatment, all subjects completed the health status measures again; preoperative data were compared with postoperative data. RESULTS: Before treatment, satisfaction with complete dentures was low in all 3 groups. Subjects requesting implants (IG and CDG1) had high expectations for implant-stabilized prostheses. Improvement in denture satisfaction and OHIP scores was reported by all 3 groups after treatment. Subjects who received their preferred treatment (IG and CDG2 subjects) reported a much greater improvement than CDG1 subjects. Preoperative expectation levels did not appear to influence satisfaction with the outcomes of implant therapy in IG subjects. CONCLUSION: Subjects who received implants (IG) that replaced conventional complete dentures reported significant improvement after treatment, as did subjects who requested conventional replacement dentures (CDG2). The OHIP appears useful in identifying patients likely to benefit from implant-stabilized prostheses.

Aged↗