RT Journal Article
T1 Early Buccal Bone Resorption in Areas With or Without Keratinized Tissue and Different Mucosal Thickness at Implants in Healed Sites: An Experimental Animal Study
A1 Liñares, Antonio
A1 Tan, Hong Jin
A1 Muñoz Guzón, Fernando María
A1 Rakasevic, Dragana
A1 Leira Feijóo, Yago
A1 Blanco Carrión, Juan
K1 Buccal bone resorption
K1 Implants
K1 Keratinized mucosa
K1 Soft tissue thickness
AB AimTo evaluate early buccal bone resorption (BBR) in areas with or without buccal keratinized tissue (KT), and different mucosal thickness (MT) following implant placement at healed sites.Materials and MethodsIn 9 beagle dogs, three months following the hemimaxilla third and fourth premolars extraction, full-thickness flaps were elevated and two tissue-level implants were inserted. Before suturing, each dog was randomly assigned into 3 groups (control, non-keratinized tissue, NKT and non-keratinized tissue plus connective tissue graft, NKT-CTG). In both experimental groups (NKT and NKT-CTG), buccal KT was excised. In the NKT-CTG group, a CTG was sutured to the buccal alveolar mucosa flap (BF) and coronally repositioned around the implant neck, while in the NKT group, only the BF was repositioned. BF with a 2 mm KT band was repositioned around the implants in the control group. Buccal bone thickness (BBT), MT and KT width were measured clinically at baseline. Three months later, BBR and MT were analysed histologically.ResultsMucosal thickness at surgery was similar in NKT and control groups (1.33 ± 0.26 mm and 1.67 ± 0.52 mm, respectively). In the NKT-CTG group, MT was 2.50 ± 0.45. The mean BBT measured at the mid-buccal region was about 1 mm in the 3 groups. Three months later, early BBR was observed in all groups, with mean values of 0.91 mm ± 0.62 (control), 1.11 mm ± 0.69 (NKT) and 1.10 mm ± 0.58 (NKT-CTG). The mean values of MT at a 1.5 mm distance from the marginal mucosa were 1.20 mm ± 0.69 (control), 2.18 mm ± 0.53 (NKT) and 3.45 mm ± 1.33 (NKT-CTG).ConclusionsWithin the limitations of the present investigation, the presence or absence of KT did not affect early BBR. CTG placed in the zones without KT did not prevent early BBR.
PB Wiley
SN 0303-6979
YR 2025
FD 2025-04-15
LK https://hdl.handle.net/10347/42468
UL https://hdl.handle.net/10347/42468
LA eng
NO Liñares, A., Tan, H.J., Muñoz, F., Rakasevic, D., Leira, Y. and Blanco, J. (2025), Early Buccal Bone Resorption in Areas With or Without Keratinized Tissue and Different Mucosal Thickness at Implants in Healed Sites: An Experimental Animal Study. J Clin Periodontol, 52: 920-928. https://doi.org/10.1111/jcpe.14140
DS Minerva
RD 29 abr 2026