Immediate versus delayed implant placement after anterior single tooth extraction: the timing randomized controlled clinical trial.

Tonetti, Maurizio S; Cortellini, Pierpaolo; Graziani, Filippo; Cairo, Francesco; Lang, Niklaus Peter; Abundo, Roberto; Conforti, Gian Paolo; Marquardt, Siegfried; Rasperini, Giulio; Silvestri, Maurizio; Wallkamm, Beat; Wetzel, Anton (2017). Immediate versus delayed implant placement after anterior single tooth extraction: the timing randomized controlled clinical trial. Journal of clinical periodontology, 44(2), pp. 215-224. Wiley 10.1111/jcpe.12666

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AIM To compare need for bone augmentation, surgical complications, periodontal, radiographic, aesthetic and patient reported outcomes in subjects receiving implant placement at the time of extraction (Immediate Implant) or 12 weeks thereafter. METHODS Subjects requiring single tooth extraction in the anterior and premolar areas were recruited in seven private practices. Implant position and choice of platform were restoratively driven. Measurements were performed by calibrated and masked examiners. RESULTS IMI was unfeasible in 7.5% of cases. One hundred and 24 subjects were randomized. One implant was lost in the IMI group. IMI required bone augmentation in 72% of cases compared with 43.9% for delayed (p = 0.01), while wound failure occurred in 26.1% and 5.3% of cases, respectively (p = 0.02). At 1 year, IMI had deeper probing depths (4.1 ± 1.2 mm versus 3.3 ± 1.1 mm, p < 0.01). A trend for greater radiographic bone loss was observed at IMI over the initial 3-year period (p-trend < 0.01). Inadequate pink aesthetic scores were obtained in 19% of delayed and in 42% of IMI implant cases (p = 0.03). No differences in patient reported outcomes were observed. CONCLUSIONS Immediate implant placement should not be recommended when aesthetics are important, IMI should be limited to selected cases. Longer follow-up is needed to assess differences in complication rates.

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 > School of Dental Medicine, Periodontics Research

UniBE Contributor:

Lang, Niklaus Peter and Wallkamm, Beat

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0303-6979

Publisher:

Wiley

Language:

English

Submitter:

Doris Burri

Date Deposited:

30 Jul 2019 13:57

Last Modified:

22 Oct 2019 23:48

Publisher DOI:

10.1111/jcpe.12666

PubMed ID:

27978602

Uncontrolled Keywords:

bone augmentation dental implants human randomized controlled clinical trial tooth extraction

BORIS DOI:

10.7892/boris.125434

URI:

https://boris.unibe.ch/id/eprint/125434

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