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Volumetric assessment of tissue changes following combined surgical therapy of peri-implantitis: A pilot study.
J Clin Periodontol. 2020 Jun 25 [Online ahead of print]JC

Abstract

AIM

To assess volumetric tissue changes at peri-implantitis sites following combined surgical therapy of peri-implantitis over a 6-month follow-up period.

MATERIALS AND METHODS

Twenty patients (n = 28 implants) diagnosed with peri-implantitis underwent access flap surgery, implantoplasty at supracrestally or bucally exposed implant surfaces and augmentation at intra-bony components using a natural bone mineral and application of a native collagen membrane during clinical routine treatments. The peri-implant region of interest (ROI) was intra-orally scanned pre-operatively (S0), and after 1 (S1) and 6 (S2) months following surgical therapy. Digital files were converted to standard tessellation language (STL) format for superimposition and assessment of peri-implant volumetric variations between time points. The change in thickness was assessed at a standardized ROI, subdivided into three equidistant sections (i.e. marginal, medial and apical). Peri-implant soft tissue contour area (STCA) (mm2) and its corresponding contraction rates (%) were also assessed.

RESULTS

Peri-implant tissues revealed a mean thickness change (loss) of -0.11 and -0.28 mm at 1 and 6 months. S0 to S1 volumetric variations pointed to a thickness change of -0.46, 0.08 and 0.4 mm at marginal, medial and apical regions, respectively. S0 to S2 analysis exhibited corresponding thickness changes of -0.61, -0.25 and -0.09 mm, respectively. The thickness differences between the areas were statistically significant at both time periods. The mean peri-implant STCA totalled to 189.2, 175 and 158.9 mm2 at S0, S1 and S2, showing a significant STCA contraction rate of 7.9% from S0 to S1 and of 18.5% from S0 to S2. Linear regression analysis revealed a significant association between the pre-operative width of keratinized mucosa (KM) and STCA contraction rate.

CONCLUSIONS

The peri-implant mucosa undergoes considerable volumetric changes after combined surgical therapy. However, tissue contraction appears to be influenced by the width of KM.

Authors+Show Affiliations

Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt, Germany. Post-Graduate Program in Implant Dentistry (PPGO), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt, Germany.Post-Graduate Program in Implant Dentistry (PPGO), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Frankfurt am Main, Germany.Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32585744

Citation

Galarraga-Vinueza, Maria Elisa, et al. "Volumetric Assessment of Tissue Changes Following Combined Surgical Therapy of Peri-implantitis: a Pilot Study." Journal of Clinical Periodontology, 2020.
Galarraga-Vinueza ME, Obreja K, Magini R, et al. Volumetric assessment of tissue changes following combined surgical therapy of peri-implantitis: A pilot study. J Clin Periodontol. 2020.
Galarraga-Vinueza, M. E., Obreja, K., Magini, R., Sculean, A., Sader, R., & Schwarz, F. (2020). Volumetric assessment of tissue changes following combined surgical therapy of peri-implantitis: A pilot study. Journal of Clinical Periodontology. https://doi.org/10.1111/jcpe.13335
Galarraga-Vinueza ME, et al. Volumetric Assessment of Tissue Changes Following Combined Surgical Therapy of Peri-implantitis: a Pilot Study. J Clin Periodontol. 2020 Jun 25; PubMed PMID: 32585744.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Volumetric assessment of tissue changes following combined surgical therapy of peri-implantitis: A pilot study. AU - Galarraga-Vinueza,Maria Elisa, AU - Obreja,Karina, AU - Magini,Ricardo, AU - Sculean,Anton, AU - Sader,Robert, AU - Schwarz,Frank, Y1 - 2020/06/25/ PY - 2020/01/12/received PY - 2020/05/20/revised PY - 2020/06/13/accepted PY - 2020/6/26/pubmed PY - 2020/6/26/medline PY - 2020/6/26/entrez KW - dental implants KW - peri-implantitis KW - peri-implantitis therapy KW - three-dimensional analysis JF - Journal of clinical periodontology JO - J. Clin. Periodontol. N2 - AIM: To assess volumetric tissue changes at peri-implantitis sites following combined surgical therapy of peri-implantitis over a 6-month follow-up period. MATERIALS AND METHODS: Twenty patients (n = 28 implants) diagnosed with peri-implantitis underwent access flap surgery, implantoplasty at supracrestally or bucally exposed implant surfaces and augmentation at intra-bony components using a natural bone mineral and application of a native collagen membrane during clinical routine treatments. The peri-implant region of interest (ROI) was intra-orally scanned pre-operatively (S0), and after 1 (S1) and 6 (S2) months following surgical therapy. Digital files were converted to standard tessellation language (STL) format for superimposition and assessment of peri-implant volumetric variations between time points. The change in thickness was assessed at a standardized ROI, subdivided into three equidistant sections (i.e. marginal, medial and apical). Peri-implant soft tissue contour area (STCA) (mm2) and its corresponding contraction rates (%) were also assessed. RESULTS: Peri-implant tissues revealed a mean thickness change (loss) of -0.11 and -0.28 mm at 1 and 6 months. S0 to S1 volumetric variations pointed to a thickness change of -0.46, 0.08 and 0.4 mm at marginal, medial and apical regions, respectively. S0 to S2 analysis exhibited corresponding thickness changes of -0.61, -0.25 and -0.09 mm, respectively. The thickness differences between the areas were statistically significant at both time periods. The mean peri-implant STCA totalled to 189.2, 175 and 158.9 mm2 at S0, S1 and S2, showing a significant STCA contraction rate of 7.9% from S0 to S1 and of 18.5% from S0 to S2. Linear regression analysis revealed a significant association between the pre-operative width of keratinized mucosa (KM) and STCA contraction rate. CONCLUSIONS: The peri-implant mucosa undergoes considerable volumetric changes after combined surgical therapy. However, tissue contraction appears to be influenced by the width of KM. SN - 1600-051X UR - https://www.unboundmedicine.com/medline/citation/32585744/Volumetric_assessment_of_tissue_changes_following_combined_surgical_therapy_of_peri-implantitis:_a_pilot_study L2 - https://doi.org/10.1111/jcpe.13335 DB - PRIME DP - Unbound Medicine ER -
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