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. 2023 Feb 20;15(2):e35210.
doi: 10.7759/cureus.35210. eCollection 2023 Feb.

Marginal Bone Level Measurements of Unsplinted Implants Used for Mandibular Overdentures: A Six-Month Randomized Prospective Clinical Study Comparing Early and Delayed Loading Protocols

Tarun Gaur  1 , Roma Goswami  1 , Apoorva Mowar  2 , Deepika Sharma  3 , Pushkar Gupta  4 , Arpit Sharma  5 , Neha Sharma  6 , Anshul Saxena  1 , Deepanshu Sharma  7
Affiliations

Marginal Bone Level Measurements of Unsplinted Implants Used for Mandibular Overdentures: A Six-Month Randomized Prospective Clinical Study Comparing Early and Delayed Loading Protocols

Tarun Gaur et al. Cureus. .

Abstract

Background and purpose Implant-supported mandibular overdentures are a good alternative for patients having poor retention of mandibular conventional dentures. The aim of this prospective study was to evaluate and compare the results between early loading and delayed loading of mandibular overdentures on two unsplinted implants. Materials and methods A total of 14 completely edentulous male patients in the age group of 50-60 years were selected for the study. Two 3.5×13 mm implants were placed in the mandibular interforaminal region. The patients were divided into two groups: (i) the test group in which the overdenture was connected after one week of surgery, and (ii) the control group, in which the overdenture was connected three months after surgery. Marginal bone levels were evaluated at baseline (during loading), three months, and six months post loading. Unpaired 't' test was used for the comparison of intergroup measurements. Results No implants were lost. Marginal bone resorptions showed no statistically significant differences between the two groups over six months period after loading. Conclusion The results of this prospective clinical study suggested that there was no significant difference in the clinical and radiographic state of patients treated with implant-supported mandibular overdentures loaded either one week or three months after implant surgery.

Keywords: delayed loading; early loading; implants; mandibular overdentures; marginal bone resorption.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Radiographic template
Figure 2
Figure 2. Surgical template
Figure 3
Figure 3. Surgical template in mouth
Figure 4
Figure 4. Crestal incision
Figure 5
Figure 5. Paralleling pins placed
Figure 6
Figure 6. Implant placement using ratchet
Figure 7
Figure 7. Implant placement done
Figure 8
Figure 8. Resonance frequency analysis value taken after implant placement
Figure 9
Figure 9. Hollowing out of the denture base and perforations made for the removal of excess autopolymerising resin
Figure 10
Figure 10. Metal housings and nylon caps after incorporation into the denture base
Figure 11
Figure 11. Ball abutments placed on the same day of implant placement and suturing done
Figure 12
Figure 12. Orthopantomogram after implant placement
Figure 13
Figure 13. Crestal bone loss at site B (baseline, three months, and six months) for Group 1 and Group 2
Figure 14
Figure 14. Comparison of change in crestal bone loss (site B) between groups (intergroup comparison)
Figure 15
Figure 15. Crestal bone loss at site D (baseline, three months, and six months) for Group 1 and Group 2
Figure 16
Figure 16. Comparison of change in crestal bone loss (site D) between groups (intergroup comparison)
See this image and copyright information in PMC

References

    1. The McGill consensus statement on overdentures. Mandibular two-implant overdentures as first choice standard of care for edentulous patients. Feine JS, Carlsson GE, Awad MA, et al. https://pubmed.ncbi.nlm.nih.gov/12164236/ Gerodontology. 2002;19:3–4. - PubMed
    1. Effectiveness of three treatment modalities for the edentulous mandible. A five-year randomized clinical trial. Raghoebar GM, Meijer HJ, Stegenga B, van't Hof MA, van Oort RP, Vissink A. Clin Oral Implants Res. 2000;11:195–201. - PubMed
    1. A comparative clinical investigation of 2 early loaded ITI dental implants supporting an overdenture in the mandible. Røynesdal AK, Amundrud B, Hannaes HR. https://pubmed.ncbi.nlm.nih.gov/11324212/ Int J Oral Maxillofac Implants. 2001;16:246–251. - PubMed
    1. Immediate loading implants: review of the critical aspects. Tettamanti L, Andrisani C, Bassi MA, Vinci R, Silvestre-Rangil J, Tagliabue A. https://pubmed.ncbi.nlm.nih.gov/29876038/ Oral Implantol (Rome) 2017;10:129–139. - PMC - PubMed
    1. Implant placement and loading protocols in partially edentulous patients: a systematic review. Gallucci GO, Hamilton A, Zhou W, Buser D, Chen S. Clin Oral Implants Res. 2018;29 Suppl 16:106–134. - PubMed

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