Need for lateral bone augmentation at two narrow-diameter implants: A prospective, controlled, clinical study.

Roccuzzo, Andrea; Imber, Jean-Claude; Jensen, Simon Storgård (2021). Need for lateral bone augmentation at two narrow-diameter implants: A prospective, controlled, clinical study. Clinical oral implants research, 32(4), pp. 511-520. Wiley 10.1111/clr.13721

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OBJECTIVES

To detect the potential influence of implant diameter and anatomic factors on the need for bone augmentation procedures (BAPs) when replacing congenitally missing lateral incisors (MLIs).

MATERIALS AND METHODS

Patients with congenitally missing MLIs with a mesio-distal distance between the canine and the central incisor of 5.9-6.3 mm received a Ø2.9 mm implant while Ø3.3 mm implants were placed when the distance was 6.4-7.1 mm. The following linear measurements were recorded using a calliper: width of the alveolar process (WAP), width of the bony alveolar ridge (WAR) and thickness of the facial bone after implant osteotomy (TFB). Guided bone regeneration was performed in case of fenestration- or dehiscence-type defects or a thin TFB (<1.7 mm).

RESULTS

Fifty Ø2.9 mm and 50 Ø3.3 mm were included in 100 patients. WAP and WAR did not differ between the groups (p > .05). TFB was statistically significant larger in the Ø2.9 group (1.75 ± 0.59 mm) compared to the Ø3.3 group (1.5 ± 0.63 mm) (p = .041). Fenestration-type defects (p = .005) and a thin facial bone wall (p = .045) was observed more frequently in the Ø3.3 compared to the Ø2.9 group. Correspondingly, BAP was indicated more frequently in the Ø3.3 compared to the Ø2.9 group (p = .017). WAP, MD and WAR were statistically significant correlated to the need for BAP (p < .001). As independent variable, only WAR influenced the probability of BAP (p < .001).

CONCLUSION

The use of 2.9 diameter implants was correlated to a reduced frequency of BAP compared to 3.3 mm implants, without reaching a statistically significant difference. Measurement of the WAP provides the clinician useful information to predict BAP.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology
04 Faculty of Medicine > School of Dental Medicine > Periodontics Research

UniBE Contributor:

Roccuzzo, Andrea, Imber, Jean-Claude

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0905-7161

Publisher:

Wiley

Language:

English

Submitter:

Doris Burri

Date Deposited:

26 Jan 2022 14:45

Last Modified:

17 Jan 2023 13:53

Publisher DOI:

10.1111/clr.13721

PubMed ID:

33548077

Uncontrolled Keywords:

bone regeneration congenitally missing teeth narrow diameter small diameter implants

BORIS DOI:

10.48350/163933

URI:

https://boris.unibe.ch/id/eprint/163933

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