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Stomatologija 2009; 11 (3): 83-91 717 KB

Reaction of crestal bone around implants depending on mucosal tissue thickness. A 1-year prospective clinical study

Tomas Linkevicius, Peteris Apse, Simonas Grybauskas, Algirdas Puisys

Summary

Purpose. The aim of this paper was to distinguish what kind of mucosal tissue, measured at the top of the crest can be referred to as thin, medium or thick and its influence on crestal bone loss around dental implants after a 1-year follow-up.

Materials and Methods. Totally 64 implants were evaluated in 26 patients. 32 implants (test group) were placed about 2 mm supracrestally and 32 implants (control group) were positioned equal to the bone level. Mucosal tissues at a time of implant placement were divided into 3 groups - thin, medium and thick. Crestal bone changes were measured at implant placement and after a 1-year follow-up.

Results. Mean bone loss around test implants in thin tissue group (up to 2 mm) was 1.35 mm ±0.33 SD, in medium thickness group mean bone loss was 0.32 mm ±0.44 SD and 0.12 mm ±0.16 SD of bone loss was registered in thick tissue group (3.1 mm and more). Mean bone loss around control implants in all 3 groups was as follows: 1.8 mm ±0.52 SD in thin, 1.62 mm ±0.63 SD in medium and 1.55 mm ±0.47 SD in thick tissue group. ANOVA analysis showed statistically significant differences between 3 groups of thickness, as crestal bone loss around test implants is concerned. (F_[2,29]=37.3; P= .000). In control implants bone loss did not vary between 3 groups of tissue thickness (F_[2,29]=0.73; P= .503).

Conclusions. It can be concluded that initial tissue thickness can influence crestal bone changes around implants.

Key words:

Received: 00 00 2009

Accepted for publishing: 28 09 2009

¹Institute of Odontology, Faculty of Medicine, Vilnius university, Vilnius, Lithuania

²Vilnius Implantology Center Clinic, Vilnius, Lithuania

³Vilnius Research Group, Vilnius, Lithuania

⁴Department of Prosthodontics, Riga Stradins University, Riga, Latvia

⁵Vilnius University Hospital Zalgiris Clinic, Vilnius, Lithuania

Tomas Linkevicius^{1, 2, 3} – DDS, Dip. Pros, PhD

Peteris Apse⁴ – DDS, Dip. Pros., MSc (Toronto), Dr. hab. med (Latvia), professor

Simonas Grybauskas^{2, 5} – DDS, MD, MOS RCSEd, PhD

Algirdas Puisys² – DDS

Address correspondence to Dr. Tomas Linkevicius, Institute of Odontology, Faculty of Medicine, Vilnius university Zalgirio str. 115, 08217 Vilnius, Lithuania.

E-mail address: linktomo@gmail.com



	Baltic Dental and Maxillofacial Journal

September, 2009, Vol. 11, No. 3 CONTENTS SCIENTIFIC ARTICLES Epidemiology of mandibular fractures treated at Kaunas University of Medicine Hospital, Lithuania Ricardas Kubilius,Tadas Keizeris 73 -76 Use of dental radiography among Lithuanian general dentists Vytaute Peciuliene, Jurate Rimkuviene, Rasma Maneliene, Saulius Drukteinis 77-82 Reaction of crestal bone around implants depending on mucosal tissue thickness. A 1-year prospective clinical study Tomas Linkevicius, Peteris Apse, Simonas Grybauskas, Algirdas Puisys 83-91 Quality of root canal filling performed by undergraduate students of odontology at Kaunas University of Medicine in Lithuania Eduardas Kelbauskas, Laura Andriukaitiene, Irena Nedzelskiene 92-96 The factors effecting satisfaction of dental appearance and self-perceived need for orthodontic treatment in 10-11 and 14-15 year-old Lithuanian schoolchildren Diana Baubiniene, Antanas Sidlauskas 97-102 © 2009 Stomatologija		Stomatologija 2009; 11 (3): 83-91 717 KB Reaction of crestal bone around implants depending on mucosal tissue thickness. A 1-year prospective clinical study Tomas Linkevicius, Peteris Apse, Simonas Grybauskas, Algirdas Puisys Summary Purpose. The aim of this paper was to distinguish what kind of mucosal tissue, measured at the top of the crest can be referred to as thin, medium or thick and its influence on crestal bone loss around dental implants after a 1-year follow-up. Materials and Methods. Totally 64 implants were evaluated in 26 patients. 32 implants (test group) were placed about 2 mm supracrestally and 32 implants (control group) were positioned equal to the bone level. Mucosal tissues at a time of implant placement were divided into 3 groups - thin, medium and thick. Crestal bone changes were measured at implant placement and after a 1-year follow-up. Results. Mean bone loss around test implants in thin tissue group (up to 2 mm) was 1.35 mm ±0.33 SD, in medium thickness group mean bone loss was 0.32 mm ±0.44 SD and 0.12 mm ±0.16 SD of bone loss was registered in thick tissue group (3.1 mm and more). Mean bone loss around control implants in all 3 groups was as follows: 1.8 mm ±0.52 SD in thin, 1.62 mm ±0.63 SD in medium and 1.55 mm ±0.47 SD in thick tissue group. ANOVA analysis showed statistically significant differences between 3 groups of thickness, as crestal bone loss around test implants is concerned. (F_[2,29]=37.3; P= .000). In control implants bone loss did not vary between 3 groups of tissue thickness (F_[2,29]=0.73; P= .503). Conclusions. It can be concluded that initial tissue thickness can influence crestal bone changes around implants. Key words: Received: 00 00 2009 Accepted for publishing: 28 09 2009 ¹Institute of Odontology, Faculty of Medicine, Vilnius university, Vilnius, Lithuania ²Vilnius Implantology Center Clinic, Vilnius, Lithuania ³Vilnius Research Group, Vilnius, Lithuania ⁴Department of Prosthodontics, Riga Stradins University, Riga, Latvia ⁵Vilnius University Hospital Zalgiris Clinic, Vilnius, Lithuania Tomas Linkevicius^{1, 2, 3} – DDS, Dip. Pros, PhD Peteris Apse⁴ – DDS, Dip. Pros., MSc (Toronto), Dr. hab. med (Latvia), professor Simonas Grybauskas^{2, 5} – DDS, MD, MOS RCSEd, PhD Algirdas Puisys² – DDS Address correspondence to Dr. Tomas Linkevicius, Institute of Odontology, Faculty of Medicine, Vilnius university Zalgirio str. 115, 08217 Vilnius, Lithuania. E-mail address: linktomo@gmail.com