J Adv Prosthodont.  2016 Aug;8(4):313-320. 10.4047/jap.2016.8.4.313.

Clinical evaluation of mandibular implant overdentures via Locator implant attachment and Locator bar attachment

• Seo YH
• Bae EB
• Kim JW
• Lee SH
• Yun MJ
• Jeong CM
• Jeon YC
• Huh JB

• KMID: 2349340
• DOI: http://doi.org/10.4047/jap.2016.8.4.313

Abstract

PURPOSE
The aim of this study was to evaluate the clinical findings and patient satisfaction on implant overdenture designed with Locator implant attachment or Locator bar attachment in mandibular edentulous patients.
MATERIALS AND METHODS
Implant survival rate, marginal bone loss, probing depth, peri-implant inflammation, bleeding, plaque, calculus, complications, and satisfaction were evaluated on sixteen patients who were treated with mandibular overdenture and have used it for at least 1 year (Locator implant attachment: n=8, Locator bar attachment: n=8).
RESULTS
Marginal bone loss, probing depth, plaque index of the Locator bar attachment group were significantly lower than the Locator implant attachment group (P<.05). There was no significant difference on bleeding, peri-implant inflammation, and patient satisfaction between the two denture types (P>.05). The replacement of the attachment components was the most common complication in both groups. Although there was no correlation between marginal bone loss and plaque index, a significant correlation was found between marginal bone loss and probing depth.
CONCLUSION
The Locator bar attachment group indicates lesser marginal bone loss and need for maintenance, as compared with the Locator implant attachment group. This may be due to the splinting effect among implants rather than the types of Locator attachment.

Keyword

Implant overdenture; Edentulous mandible; Locator implant attachment; Locator bar attachment; Clinical complication

MeSH Terms

Calculi
Denture, Overlay*
Dentures
Hemorrhage
Humans
Inflammation
Patient Satisfaction
Splints
Survival Rate

Figure

• 

  Fig. 1 Intraoral view of implant overdenture attachment. (A) LIA group: Locator implant attachment utilized with two implants, (B) LBA group: Locator bar attachment utilized with four implants splinted with a bar.

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