Influence of collar design on peri-implant tissue healing around immediate implants: A pilot study in Foxhound dogs

Purpose The study aims to assess the soft tissue level (STL) and crestal bone level (CBL), of titanium dental implants with different mixed collar abutments configurations. Materials and methods This study included 48 implants with the same dimensions. They were divided into two groups of 24 implant...

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Bibliographic Details
Published in:Clinical oral implants research 2015-07, Vol.26 (7), p.851-857
Main Authors: Calvo-Guirado, José Luis, López-López, Patricia Jara, Maté Sánchez de val, José Eduardo, Mareque-Bueno, Javier, Delgado-Ruiz, Rafael Arcesio, Romanos, Georgios E.
Format: Article
Language:English
Subjects:
Animals
Bone implants
Bone resorption
collar design
Collars
Conformation
crestal bone
Dental Implants
Dental Prosthesis Design
Dental prosthetics
Dentistry
Dogs
Evaluation
Gingiva - physiology
Gingiva - surgery
Healing
Histology
Immediate Dental Implant Loading
immediate implant placement
Implants, Experimental
Jaw
Male
Mandible
Mandible - surgery
Osseointegration
Osseointegration - physiology
Pilot Projects
Shoulder
soft tissue
Soft tissues
Surface Properties
Titanium
Tooth Socket - surgery
Transplants & implants
Wound Healing - physiology
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Summary:Purpose The study aims to assess the soft tissue level (STL) and crestal bone level (CBL), of titanium dental implants with different mixed collar abutments configurations. Materials and methods This study included 48 implants with the same dimensions. They were divided into two groups of 24 implants each one: implants with a polished collar of 2 mm plus a roughened area of 0.8 mm (CONTROL) and implants with a polished collar of 0.8 mm plus a micro‐threated and roughened area of 2 mm (TEST). The implants were inserted randomly in the post‐extraction sockets of P2, P3, P4, and M1 bilaterally in the lower jaw of six foxhound dogs. STL and CBL were evaluated after 8 and 12 weeks by histology and histometry. Results All implants were clinically and histologically osseointegrated. Healing patterns examined microscopically at 8 and 12 weeks for both groups yielded similar qualitative findings for the STL evaluation, without significant differences between groups (P > 0.05). CBL was significantly higher in the buccal side in comparison with the lingual side for both groups (P 
ISSN:0905-7161
1600-0501
DOI:10.1111/clr.12374