Evaluation of Hard and Soft Tissue Dimensions Around Zirconium Oxide Implant-Supported Crowns: A 1-Year Retrospective Study.

Kniha, Kristian; Gahlert, Michael; Hicklin, Stefan; Brägger, Urs; Kniha, Heinz; Milz, Stefan (2016). Evaluation of Hard and Soft Tissue Dimensions Around Zirconium Oxide Implant-Supported Crowns: A 1-Year Retrospective Study. Journal of periodontology, 87(5), pp. 511-518. American Academy of Periodontology 10.1902/jop.2015.150441

[img] Text
Evaluation of Hard and Soft Tissue Dimensions Around Zirconium Oxide Implant-Supported Crowns A 1-Year Retrospective Study.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

BACKGROUND

This study aims to evaluate the effect of the distance between the alveolar crest of a full-ceramic implant to the lowest point of the contact area of the crowns on the interdental papilla. Therefore, the authors proposed a new concept of linear measurements for the reproducible and metric evaluation of distances relevant for the assessment of hard and soft tissue changes around dental implants.

METHODS

A total of 216 sites were examined in 87 patients. In a radiographic and clinical evaluation, four relevant distances were evaluated. In the x-ray image, the tip of the papilla was marked with a radiodense mixture of tungsten powder and temporary cement. In a clinical photograph, the lowest point of the interdental contact zone of the crowns was visualized by a metallic interdental ligature.

RESULTS

Using the proposed measuring methodology, four different papilla-deficit situations around ceramic implants could be reproducibly distinguished. When the measurement from the bone crest at the implant was ≤5 mm, the papilla was completely present in 100% of cases. When this distance was 10 mm, the papilla was still present in 67% of the cases, without any cosmetically apparent deficit.

CONCLUSIONS

A close relationship is observed between the distance from the contact point to the bone and the presence of the papilla. Using a combination of radiographically and clinically visible landmarks allows the reproducible measurement of these distances.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology
04 Faculty of Medicine > School of Dental Medicine > Division of Fixed Prosthodontics [discontinued]

UniBE Contributor:

Hicklin, Stefan and Brägger, Urs

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0022-3492

Publisher:

American Academy of Periodontology

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

20 Jan 2017 12:29

Last Modified:

24 Sep 2017 12:11

Publisher DOI:

10.1902/jop.2015.150441

PubMed ID:

26654346

Uncontrolled Keywords:

Crown, dental implants, esthetics, gingiva, radiography, zirconium

BORIS DOI:

10.7892/boris.91252

URI:

https://boris.unibe.ch/id/eprint/91252

Actions (login required)

Edit item Edit item
Provide Feedback