Dataset Information

A Pilot Study with Randomised Controlled Design Comparing TiZr Alloy Dental Implants to Ti Implants.

ABSTRACT:

Objectives

Evidence on the clinical performance of recently introduced dental implants in titanium-zirconium alloy is sparse. The aim of the present pilot study with randomized controlled design is to compare changes in supporting structures around dental titanium-zirconium alloy implants to commercially pure titanium implants.

Material and methods

The present material includes consecutive patients referred to a specialist clinic in Sweden. Two patient groups treated with dental implants in two different materials - titanium (Ti) and titanium-zirconium (TiZr) - were defined after block randomisation for smoking. In total, 40 implants installed in 21 patients were available for one-year follow-up. Marginal bone level, soft tissue height and width of keratinised mucosa were registered at baseline and at one-year follow-up.

Results

At implant level, the test group (TiZr) yielded significant marginal bone loss (P < 0.001) after one year. Additionally, marginal bone loss after one year was significantly higher for TiZr implants (P < 0.001) as compared to traditional Ti implants. Soft tissue dimensions were stable throughout the evaluation time for both implant materials.

Conclusions

One-year results indicate more pronounced initial marginal bone loss for dental implants in titanium-zirconium alloy as compared to implants made of commercially pure titanium.

SUBMITTER: Hultin K

PROVIDER: S-EPMC7875101 | biostudies-literature | 2020 Oct-Dec

REPOSITORIES: biostudies-literature

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Publications

A Pilot Study with Randomised Controlled Design Comparing TiZr Alloy Dental Implants to Ti Implants.

Hultin Kristina K Eriksson Annelie A Backe Christina C Johansson Ulf U Bougas Kostas K

Journal of oral & maxillofacial research 20201001 4

<h4>Objectives</h4>Evidence on the clinical performance of recently introduced dental implants in titanium-zirconium alloy is sparse. The aim of the present pilot study with randomized controlled design is to compare changes in supporting structures around dental titanium-zirconium alloy implants to commercially pure titanium implants.<h4>Material and methods</h4>The present material includes consecutive patients referred to a specialist clinic in Sweden. Two patient groups treated with dental i ...[more]

PMID: 33598111

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Project description:BackgroundRoot debridement procedures for the treatment of periodontal diseases, produces root surface irregularities and smear layer on the root surface that can adversely affect the healing of periodontal tissues. The objective of the present study was to evaluate the surface texture of root after hand instrumentation with Gracey curette, After Five curette, and Mini Five curette.MethodsA randomised, controlled clinical trial was conducted with 120 participants clinically diagnosed with chronic periodontitis. Participants were equally randomised into four groups, with parallel treatment assignment of scaling and root planning using Gracey Curettes, After five and Mini five curette, and a control group with no instrumentation. Mobile teeth of these patients were then extracted atraumatically and analysed under a Scanning Electron Microscope and graded for "Roughness and Loss of Tooth substance index" and "Smear layer index." Cross Tabulation was made between the test groups (Control, Gracey Curette, After five, and Mini Five) versus "Roughness and Loss of Tooth substance Index" and "Smear Layer Index." A Chi-square test with Bonferroni correction was used to determine the graded distribution among the groups.ResultsIn the control group, 73.3% of the teeth showed grade 1 roughness. In the Gracey group, 56.7% showed grade 2 roughness; in the After 5 group, 70% showed grade 3 roughness; in the Mini 5 group, 76.7% showed grade 3 roughness. A significant association was found between roughness scores and the use of individual instruments. Regarding smear layer formation, 46.7% of teeth showed a grade 4 smear layer in the control group. 50% of teeth showed grade 2 smear layer thickness in the Gracey group. In the After 5 group, 73.3% of teeth showed a grade 1 smear layer, while in the Mini 5 group, 80.0% showed a grade 1 smear layer. The use of individual instruments was significantly associated with the smear layer scores.ConclusionGracey curettes produced relatively smoother root surfaces with less smear layer formation than After Five and Mini Five curettes, which produced relatively more roughened root surfaces with thicker smear layer formation.Trial registrationID: ClinicalTrials.gov Identifier: NCT04216966 Date of Registration: January 3, 2020.

Dataset Information

A Pilot Study with Randomised Controlled Design Comparing TiZr Alloy Dental Implants to Ti Implants.

Objectives

Material and methods

Results

Conclusions

Publications

A Pilot Study with Randomised Controlled Design Comparing TiZr Alloy Dental Implants to Ti Implants.

Similar Datasets

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