Influence of Implant Neck Design on Peri-Implant Tissue Dimensions: A Comparative Study in Dogs

Autor: José Luis Calvo-Guirado, Raúl Jiménez-Soto, Carlos Pérez Albacete-Martínez, Manuel Fernández-Domínguez, Sérgio Alexandre Gehrke, José Eduardo Maté-Sánchez de Val
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Materials, Vol 11, Iss 10, p 2007 (2018)
Druh dokumentu: article
ISSN: 1996-1944
DOI: 10.3390/ma11102007
Popis: This in vivo study assessed (hard and soft) peri-implant tissue remodeling around implants with micro-ring and open-thread neck designs placed in a dog model. Twenty histological sections corresponding to four different implant designs that were placed in America Foxhound dogs were obtained from previous studies. All the implants had been placed under identical conditions and were divided into four groups: Group A, micro-rings on implant neck plus 0.5 mm refined surface; Group B, micro-rings on implant neck; Group C, open-thread neck; and, Group D, double-spiral neck. Eight weeks after surgery, the integrated implants were removed and processed for histological examination. Crestal bone loss and bone-to-implant contact was greater for micro-ring necks than open-thread necks. Soft tissues showed significant differences on both buccal and lingual aspects, so that the distance from peri-implant mucosa to the apical portion of the barrier epithelium was smaller in the micro-ring groups. So, in spite of generating greater bone-to-implant contact, implants with micro rings produced more bone loss than open-thread implants. Moreover, the outcomes that were obtained IPX implants smooth neck design produced less bone loss in the cervical area, following by Facility implants when compared with the other open thread and microthreaded implant designs. Implant thread design can influence on bone remodeling in the cervical area, related to bundle bone preservation.
Databáze: Directory of Open Access Journals
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