Short Dental Implants Retaining Two-Implant Mandibular Overdentures in Very Old, Dependent Patients: Radiologic and Clinical Observation Up to 5 Years.

Maniewicz, Sabrina; Buser, Ramona; Duvernay, Elena; Vazquez, Lydia; Loup, Angelica; Perneger, Thomas V; Schimmel, Martin; Müller, Frauke (2017). Short Dental Implants Retaining Two-Implant Mandibular Overdentures in Very Old, Dependent Patients: Radiologic and Clinical Observation Up to 5 Years. The international journal of oral & maxillofacial implants, 32(2), pp. 415-422. Quintessence Publishing 10.11607/jomi.5361

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PURPOSE

To describe the survival rate and peri-implant bone loss in very old patients dependent for their activities of daily living (ADL), treated with mandibular two-implant overdentures (IODs) in the context of a previously reported randomized controlled trial.

MATERIALS AND METHODS

A total of 19 patients received two interforaminal Straumann implants (Regular Neck, 4.1 mm diameter, 8 mm length) that were subsequently loaded with Locator attachments, transforming their preexisting inferior conventional denture into an IOD. The primary outcome measures were implant survival rate and radiographically assessed peri-implant bone loss. Secondary outcome measures included peri-implant probing depth and Plaque Index scores, as well as implant mobility. Nutritional state (body mass index and blood markers) and cognitive state (Mini-Mental State Examination) were also analyzed.

RESULTS

The patient cohort comprised eight men and 11 women with a mean age of 85.7 ± 6.6 years. The implant survival rate up to 5 years was 94.7%, with one early and one late implant failure. The mean loss of peri-implant bone height was 0.17 mm per year (95% confidence interval: 0.09 to 0.24; P < .001). Peri-implant probing depth and Plaque Index scores were low and stable during the first 2 years, and thereafter increased continuously. Correlation analysis suggests that a reduced cognitive function and nutritional state are not a particular risk factor for accelerated peri-implant bone loss.

CONCLUSION

The high implant survival and acceptable peri-implant health suggest that neither age nor dependency for the ADLs is a contraindication for the placement of implants. Nevertheless, close monitoring of the patients concerning a potential further functional decline precluding denture management and performing oral hygiene measures is advised.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology
UniBE Contributor:	Buser, Ramona, Schimmel, Martin
Subjects:	600 Technology > 610 Medicine & health
ISSN:	1942-4434
Publisher:	Quintessence Publishing
Language:	English
Submitter:	Vanda Kummer
Date Deposited:	24 Jul 2019 15:34
Last Modified:	05 Dec 2022 15:24
Publisher DOI:	10.11607/jomi.5361
PubMed ID:	28291859
URI:	https://boris.unibe.ch/id/eprint/123766