Laboratory-processed acrylic resin provisional restoration with cast metal substructure for immediately loaded implants

Prosthetic Requirements for Immediate Implant Loading: A Review

“…The acrylic interim prostheses can also be used to check the precision of the final impression by inserting the acrylic interim prosthesis on the final cast and checking its fit, thus confirming the correct positioning of the implant replicas 93 . Along with acrylic resin, the use of a rigid U‐shaped metallic framework connection minimizes the rotational movements, transfers the load to the implants mostly in a vertical direction, avoids deflection or fracture that could lead to macromovements, provides stability, allows osseointegration to occur safely, and improves patient comfort 1,5,30,39,83, 94–99 …”

“…93 Along with acrylic resin, the use of a rigid U-shaped metallic framework connection minimizes the rotational movements, transfers the load to the implants mostly in a vertical direction, avoids deflection or fracture that could lead to macromovements, provides stability, allows osseointegration to occur safely, and improves patient comfort. 1,5,30,39,83,[94][95][96][97][98][99] Provisionalizing immediately loaded implants can be done in different ways. A metal-free immediate provisional fixed cross-arch restoration with a continuous palatal rafter has been used and did not adversely affect the rate of osseointegration around immediately loaded splinted implants.…”

“…In the mandible, the number of implants needed for an implant-supported overdenture ranges from one to four implants. 37,39,41,110,[135][136][137][138][139][140][141] Immediately loaded mandibular overdentures are a successful treatment option with long-term success for edentulous patients, 142,143 especially when they are supported by four implants placed in a tripod configuration connected by a U-shaped bar 1,39,41,90,94,97,126,136 The survival rates are similar to those obtained following a delayed approach protocol 1,5,27,136,142,143 (Table 3). Although a number of studies reported good results with three or fewer implants immediately loaded, these clinical cases need to be carefully followed and validated in the long term.…”

Technique of Framework Cemented on Prepared Abutments to Obtain Passive Fit at Fixed Complete Denture: A 2-Year Follow-Up Report

“…In addition, the immediate fixed complete denture incorporates a metal support framework that is required even in the early period of loading, thus preventing fractures of the temporary acrylic resin fixed denture (15)(16).…”

Syncrystallization: A Technique for Temporization of Immediately Loaded Implants with Metal‐Reinforced Acrylic Resin Restorations

“…[27][28][29][30][31][32][33] According to Brunski and colleagues, [34][35][36][37] implants can be loaded early or immediately, if micromovements above a threshold of 100 µm can be avoided during the healing phase. 16,17,46 This indicates that rigid acrylic resin provisional restorations are able to confine the occlusal forces applied to the bone-implant interface to a physiological range. Cameron and colleagues 38 reported that osseointegration can be achieved even with micromovements, but not with so-called macromovements.…”