Assessment of soft and hard tissue dimensions following different treatment approaches of ligature-induced peri-implantitis defects.

Abstract

OBJECTIVES:

To evaluate peri-implant tissue dimensions following nonsurgical (NS) and surgical therapy (S) employing different decontamination protocols of advanced ligature-induced peri-implantitis in dogs.

MATERIAL & METHODS:

Peri-implantitis defects (n = 5 dogs, n = 30 implants) were randomly and equally allocated in a split-mouth design to NS or S treatment using either an Er:YAG laser (ERL), an ultrasonic device (VUS), or plastic curettes + local application of metronidazole gel (PCM), respectively. Horizontal bone thickness (hBT) and soft tissue thickness (hMT) were measured at different reference points: (v0) at the marginal portion of the peri-implant mucosa (PM); (v1) at 50% of the distance from PM to bone crest (BC); (v2) at the BC; (v3) at the most coronal extension of the bone-to-implant contact. Vertical peri-implant tissue height was calculated from PM to BC.

RESULTS:

All of the treatment groups showed a gradual hMT increase from v0 to the v2 reference point, followed by a reduction from v2 to the v3 region. The S-VUS subgroup tended to be associated with higher hMT values at the v0 region than the NS-VUS subgroup (0.44 mm versus 0.31 mm). PM-BC distance varied from 2.22 to 2.83 mm in the NS group, and from 2.07 to 2.38 in the S group.

CONCLUSION:

Vertical and horizontal peri-implant tissue dimensions were similar in different treatment groups.

• Authors: Ausra Ramanauskaite, Karina Obreja, Robert Sader, Jürgen Becker, Frank Schwarz
• Journal: Clinical oral implants research (Clin Oral Implants Res) Vol. 32 Issue 4 Pg. 394-400 (Apr 2021) ISSN: 1600-0501 [Electronic] Denmark
• PMID: 33421206 (Publication Type: Journal Article)
• Copyright: © 2021 The Authors. Clinical Oral Implants Research published by John Wiley & Sons Ltd.

Chemical References

• Dental Implants

Topics

• Dental Implants (adverse effects)
• Humans
• Ligation
• Peri-Implantitis (diagnostic imaging, therapy)
• Tooth