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Rehabilitation of resorbed mandibular ridges using mini implant retained overdentures: A case series with 3 year follow-up

View Article: PubMed Central - PubMed

ABSTRACT

With the increasing average life expectancy of human beings, the need to cater geriatric patients is ever increasing. Complete dentures are an indispensable tool in this regard. The loose and unstable lower complete denture owing to residual ridge resorption is one of the most common problems faced by edentulous patients. Dental implant retained overdentures have emerged as an efficient treatment modality for such patients. Though useful, not every patient is a suitable candidate to go for conventional implant-borne prosthesis, limitation being the available bone width. In such cases, mini implants may be used for augmenting the retention of the dentures and improving the quality of life of patients. In this case series, rehabilitation of three compromised cases with mini implant retained overdentures have been described wherein patients are experiencing instability of lower denture due to thin resorbed mandibular ridges. In one of the cases, three mini implants placed in A, C, and E position were splinted using a cemented bar to retain the mandibular denture. The other two cases were rehabilitated using unsplinted ball type one piece mini implants placed in A, C, and E position in one case and B and D position in another case. Though splinted bar design should be preferred but the lack of available vertical space precluded the utilization of bar in other two cases. The results were found to be satisfactory with no complications reported during a follow-up period of over 3 years in all the cases.

No MeSH data available.


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(a) Intraoral occlusal view showing atrophic mandibular ridge. (b) Three one-piece mini implants with ball abutments inserted
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Figure 1: (a) Intraoral occlusal view showing atrophic mandibular ridge. (b) Three one-piece mini implants with ball abutments inserted

Mentions: The surgery was carried out under infiltration anesthesia, and a full thickness flap was raised using a mid-crestal incision. Duplicated denture was modified and used as a positional guide for implant insertion. Osteotomy site preparation was done using just the lance drill and 1.8 mm diameter pilot drill. Rotary insertion of the two mini implants of dimension 2.5 mm × 13 mm at A and C position and 2.5 mm × 10 mm at C position was done. (MS implant denture, Osstem, South Korea, Lot: FMN11C002, FMN11C004) were done using torque controlled ratchet device till a torque of 40 Ncm was reached. The flap was sutured using 3-0 silk sutures [Figure 1a and b]. The patient was instructed in after-care and advised not to use the lower denture till the soft-tissue healing was complete. After 1-week, the lower denture was generously relieved to seat over the ball abutments and lined with soft-tissue conditioner (Viscogel, Dentsply, Germany). The patient was instructed well about the usage and maintenance of the denture in the healing phase.


Rehabilitation of resorbed mandibular ridges using mini implant retained overdentures: A case series with 3 year follow-up
(a) Intraoral occlusal view showing atrophic mandibular ridge. (b) Three one-piece mini implants with ball abutments inserted
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4837782&req=5

Figure 1: (a) Intraoral occlusal view showing atrophic mandibular ridge. (b) Three one-piece mini implants with ball abutments inserted
Mentions: The surgery was carried out under infiltration anesthesia, and a full thickness flap was raised using a mid-crestal incision. Duplicated denture was modified and used as a positional guide for implant insertion. Osteotomy site preparation was done using just the lance drill and 1.8 mm diameter pilot drill. Rotary insertion of the two mini implants of dimension 2.5 mm × 13 mm at A and C position and 2.5 mm × 10 mm at C position was done. (MS implant denture, Osstem, South Korea, Lot: FMN11C002, FMN11C004) were done using torque controlled ratchet device till a torque of 40 Ncm was reached. The flap was sutured using 3-0 silk sutures [Figure 1a and b]. The patient was instructed in after-care and advised not to use the lower denture till the soft-tissue healing was complete. After 1-week, the lower denture was generously relieved to seat over the ball abutments and lined with soft-tissue conditioner (Viscogel, Dentsply, Germany). The patient was instructed well about the usage and maintenance of the denture in the healing phase.

View Article: PubMed Central - PubMed

ABSTRACT

With the increasing average life expectancy of human beings, the need to cater geriatric patients is ever increasing. Complete dentures are an indispensable tool in this regard. The loose and unstable lower complete denture owing to residual ridge resorption is one of the most common problems faced by edentulous patients. Dental implant retained overdentures have emerged as an efficient treatment modality for such patients. Though useful, not every patient is a suitable candidate to go for conventional implant-borne prosthesis, limitation being the available bone width. In such cases, mini implants may be used for augmenting the retention of the dentures and improving the quality of life of patients. In this case series, rehabilitation of three compromised cases with mini implant retained overdentures have been described wherein patients are experiencing instability of lower denture due to thin resorbed mandibular ridges. In one of the cases, three mini implants placed in A, C, and E position were splinted using a cemented bar to retain the mandibular denture. The other two cases were rehabilitated using unsplinted ball type one piece mini implants placed in A, C, and E position in one case and B and D position in another case. Though splinted bar design should be preferred but the lack of available vertical space precluded the utilization of bar in other two cases. The results were found to be satisfactory with no complications reported during a follow-up period of over 3 years in all the cases.

No MeSH data available.


Related in: MedlinePlus