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. 2012 Mar;11(1):21-8.
doi: 10.1007/s12663-011-0322-x. Epub 2011 Dec 28.

Clinical evaluation of early loaded and unloaded implants in edentulous mandible

S Anil Kumar  1 , Nandkishore Sahoo, V Radhakrishnan, H S Sandhu
Affiliations

Clinical evaluation of early loaded and unloaded implants in edentulous mandible

S Anil Kumar et al. J Maxillofac Oral Surg. 2012 Mar.

Abstract

Objectives: The aim of this study is to compare and evaluate the clinical outcome of early loaded and unloaded implants in the interforaminal region of anterior mandible.

Materials and methods: Five completely edentulous patients aged between 45 and 65 years were selected satisfying certain criteria. Four implants were placed in 33, 43, 35 and 45 regions; implants in 33 and 43 regions were loaded by a Dolder bar supported overdenture at 7th day. The implants at 35 and 45 regions were connected to 33 and 43 regions, respectively after 4 months. The implants were divided into two groups. Group I consisted of early loaded implants (implants in the region of 33 and 43) and Group II consisted of delayed loaded implants (implants in the region of 35 and 45). The implants were evaluated for various clinical parameters at 2, 4 and 6 month intervals after initial placement.

Results: There was significant increase in the bone to implant contact for unloaded implants as compared to early loaded at the end of 6 months of implant placement. There was increased marginal bone loss around early loaded implants as compared to unloaded implants at the end of 6 months. Clinical stability of early loaded implants was lower as compared to the unloaded implants at the end of 6 months. Survival rate for early loaded and unloaded implants was 100% at the end of 6 months with all implants in function.

Conclusion: Early loading of interforaminal mandibular implants demonstrated a highly acceptable clinical success at the end of 6 months. However, the bone density, marginal bone level and clinical stability were significantly lower for the early loaded implants as compared to unloaded implants.

Keywords: CT scan; Early loaded implants; Periotest; Unloaded implants.

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Figures

Fig. 1
Fig. 1
Paralleling pins placed in the implant preparation site
Fig. 2
Fig. 2
Implants placed in the region of 33, 43, 35 and 45
Fig. 3
Fig. 3
Post operative OPG
Fig. 4
Fig. 4
Abutments with external ball top screw in the region of 33 and 43
Fig. 5
Fig. 5
Polyvinyl siloxane impression with implant analog in place
Fig. 6
Fig. 6
Dolder bar connecting implants in the region of 33 and 43
Fig. 7
Fig. 7
Mandibular complete denture with clip attached
Fig. 8
Fig. 8
Complete denture insertion
Fig. 9
Fig. 9
Early loaded implant supported complete denture insertion
Fig. 10
Fig. 10
Permucosal extensions placed in the region of 35 and 45 after 3 1/2 months
Fig. 11
Fig. 11
Abutments with external ball top screw in the region of 33, 43, 35 and 45
Fig. 12
Fig. 12
Dolder bar connecting the implants
Fig. 13
Fig. 13
Clips attached to the mandibular complete denture
Fig. 14
Fig. 14
Implant supported complete denture insertion
See this image and copyright information in PMC

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