New Implant Design with Midcrestal and Apical Wing Thread for Increased Implant Stability in Single Postextraction Maxillary Implant

Antonio Scarano, Bartolomeo Assenza, Francesco Inchingolo, Filiberto Mastrangelo, Felice Lorusso, Antonio Scarano, Bartolomeo Assenza, Francesco Inchingolo, Filiberto Mastrangelo, Felice Lorusso

Abstract

Background: The immediate placement of a dental implant could represent an option treatment for the rehabilitation of a postextractive missing tooth socket to replace compromised or untreatable teeth, with the advantage of single-session surgery. In this way, the anatomy of the alveolar bone defect, the preservation of the buccal cortical bone, and the primary stability of the fixture represent the critical factors that consent a precise implant placement.

Objective: This case report describes a novel fixture design for postextractive alveolar socket immediate implant.

Methods: Two patients (25 and 31 years old) were treated for postextractive dental implant placement to replace both central upper incisor teeth with four implants. The residual bone implant gap was not filled with graft or bone substitute. The restoration was provided following a standard loading protocol by a cement-sealed prosthetic abutment.

Results: Clinically, all implants positioned showed an excellent insertion torque. No postoperative complications were reported. At 6 months of healing, the buccal cortical bone and the implant stability were present and well maintained.

Conclusion: The evidence of this study allows us to underline the possible advantages of this new fixture design for postextractive implant technique.

Conflict of interest statement

The authors declare that they have no conflicts of interest.

Copyright © 2019 Antonio Scarano et al.

Figures

Figure 1
Figure 1
The teeth before extraction.
Figure 2
Figure 2
Extraction of the compromised element without flap elevation.
Figure 3
Figure 3
Placement of the implant with expanded diameter thread in the midcrestal and apical area.
Figure 4
Figure 4
(a) Before extraction the CBCT image showing a thin buccal plate. (b) After 6 months of implant placement, the buccal plate was preserved and the gap was filled by new a bone. (c) Second clinical case. Before extraction, there is a thin buccal plate. (d) After 6 months of implant placement. Also in this case, the buccal plate was preserved.

References

    1. Jansen C. E., Weisgold A. Presurgical treatment planning for the anterior single-tooth implant restoration. Compendium of Continuing Education in Dentistry. 1995;16(8)
    1. Wöhrle P. S. Single-tooth replacement in the aesthetic zone with immediate provisionalization: fourteen consecutive case reports. Practical Periodontics and Aesthetic Dentistry. 1998;10(9):1107–1114.
    1. Scarano A., Piattelli A., Murmura G., Iezzi G., Assenza B., Mancino C. Delayed expansion of the atrophic mandible by ultrasonic surgery: a clinical and histologic case series. The International Journal of Oral & Maxillofacial Implants. 2015;30(1):144–149. doi: 10.11607/jomi.2753.
    1. Scarano A., Murmura G., Vantaggiato G., et al. Delayed expansion of atrophic mandible (deam): a case report. Oral & Implantology. 2017;10(2):190–196. doi: 10.11138/orl/2017.10.2.190.
    1. Scarano A., Carinci F., Assenza B., Piattelli M., Murmura G., Piattelli A. Vertical ridge augmentation of atrophic posterior mandible using an inlay technique with a xenograft without miniscrews and miniplates: case series. Clinical Oral Implants Research. 2011;22(10):1125–1130. doi: 10.1111/j.1600-0501.2010.02083.x.
    1. Sennerby L., Meredith N. Implant stability measurements using resonance frequency analysis: biological and biomechanical aspects and clinical implications. Periodontology 2000. 2008;47(1):51–66. doi: 10.1111/j.1600-0757.2008.00267.x.
    1. Javed F., Romanos G. E. The role of primary stability for successful immediate loading of dental implants. A literature review. Journal of Dentistry. 2010;38(8):612–620. doi: 10.1016/j.jdent.2010.05.013.
    1. Cappare P., Sannino G., Minoli M., Montemezzi P., Ferrini F. Conventional versus digital impressions for full arch screw-retained maxillary rehabilitations: a randomized clinical trial. International Journal of Environmental Research and Public Health. 2019;16(5):p. 829. doi: 10.3390/ijerph16050829.
    1. Capparé P., Vinci R., di Stefano D. A., et al. Correlation between initial BIC and the insertion torque/depth integral recorded with an instantaneous torque-measuring implant motor: an in vivo study. Clinical Implant Dentistry and Related Research. 2015;17(Supplement 2):e613–e620. doi: 10.1111/cid.12294.
    1. Scarano A. Traditional postextractive implant site preparation compared with pre-extractive interradicular implant bed preparation in the mandibular molar region, using an ultrasonic device: a randomized pilot study. The International Journal of Oral & Maxillofacial Implants. 2017;32(3):655–660. doi: 10.11607/jomi.5342.
    1. Piattelli A., Scarano A., Piattelli M. Microscopical aspects of failure in osseointegrated dental implants: a report of five cases. Biomaterials. 1996;17(12):1235–1241. doi: 10.1016/0142-9612(96)84944-1.
    1. Huys L. Replacement therapy and the immediate post-extraction dental implant. Implant Dentistry. 2001;10(2):93–102. doi: 10.1097/00008505-200104000-00004.
    1. Tarnow D. P., Eskow R. N. Considerations for single-unit esthetic implant restorations. Compendium of Continuing Education in Dentistry. 1995;16(8)
    1. Mall N., Dhanasekar B., Aparna I. N. Validation of implant stability: a measure of implant permanence. Indian Journal of Dental Research. 2011;22(3):462–467. doi: 10.4103/0970-9290.87071.
    1. Simeone S. G., Rios M., Simonpietri J. “Reverse torque of 30 Ncm applied to dental implants as test for osseointegration”-a human observational study. International Journal of Implant Dentistry. 2016;2(1):p. 26. doi: 10.1186/s40729-016-0060-4.
    1. Tettamanti L., Andrisani C., Bassi M. A., Vinci R., Silvestre-Rangil J., Tagliabue A. Post extractive implant: evaluation of the critical aspects. Oral & Implantology. 2017;10(2):119–128. doi: 10.11138/orl/2017.10.2.119.
    1. Barone A., Toti P., Quaranta A., Derchi G., Covani U. The clinical outcomes of immediate versus delayed restoration procedures on immediate implants: a comparative cohort study for single-tooth replacement. Clinical Implant Dentistry and Related Research. 2015;17(6):1114–1126. doi: 10.1111/cid.12225.

Source: PubMed

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