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Background: Cold welded cover screw is a rare mechanical complication. There is barely any literature on the etiology and removal techniques for the same. However, it can pose a serious problem and the screw needs to be removed, without damaging the internal threads of the implant, to initiate the prosthetic phase of implant therapy.Aim: The aim of this paper is to report our experience with the retrieval of cold welded dental implant cover screw. Case description:The present situation illustrates a new technique to retrieve a cold welded cover screw. Conclusion:Removing a cold welded cover-screw from an implant can be difficult. There is no method of screw removal that can be universally applied. In this particular case, the screw was successfully removed using the prescribed technique. Therefore, this new technique may be used when removing a cold welded coverscrew from the implant. Clinical significance:This technique is cost-effective, simple, and applicable to all available dental implant systems and can be effectively incorporated into the clinical situations in which the cold welded screws are not retrievable by conventional techniques.

The purpose of the study was to use a simplified impression technique, which is an alternative to the conventional method for complete denture fabrication. This was introduced to reduce the number of patient visits, operator time, as well as to compare the efficacy of a simplified impression technique (single appointment impression) with the conventional method (two appointments – primary and final impression). Clinical Relevance: The simplified edentulous impression technique reduces the number of patient visits when compared with the conventional technique, without compromising the principles of definitive impression-taking.

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Aims: The aim of this in vivo study was to compare the influence of posterior palatal seal (PPS) developed from the conventional method and a novel functional swallow method on the retention of custom tray and heat cure denture base. Settings and Design: This was a nonrandomized crossover clinical trial. Materials and Methods: Twenty patients requiring maxillary complete dentures were selected. In Group 1, for all twenty patients, the PPS was developed with the conventional functional method during border molding and a conventional cast scoring was performed before processing the denture base. In Group 2, for all the twenty patients, the PPS was developed with a novel functional swallow method and the master cast was “not” scored before processing the denture base. The retention was objectively measured using a dynamometer after border molding and also after processing the denture base for both groups. Statistical Analysis Used: Independent Student's t -test and paired t -test were used for analysis. Results: The mean retention value of Group 2 was significantly higher ( P < 0.001) than Group 1 at border molding and after denture base processing. Within Group 1, the retention value significantly increased ( P < 0.001) from border molding to the denture base stage, whereas within Group 2, there was no significant change ( P > 0.001) between the stages. Conclusions: Within the limitations of the study, the novel functional swallow method of establishing the PPS demonstrated higher retention than the conventional method both during border molding and after processing the denture base.