Comparison of Dimensional Accuracy of Three Different Impression Materials Using Three Different Techniques for Implant Impressions: An In Vitro Study. 2021

Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
NIMS University Department of Prosthodontics, Crown & Bridge, Jaipur, Rajasthan, India.

OBJECTIVE To compare the dimensional accuracy of polyether, polyvinyl siloxane, and polyether polyvinyl siloxane hybrid impression materials using closed tray, open tray splinted, and open tray nonsplinted coping impression techniques and to find out the best suitable impression material and technique combination for implant impressions. METHODS The sample size of the study was 45. The combinations of materials and techniques were divided into nine groups, namely polyvinyl siloxane with closed tray, polyvinyl siloxane with open tray nonsplinted copings, polyvinyl siloxane with open tray splinted copings, polyether with closed tray, polyether with open tray nonsplinted copings, polyether with open tray splinted copings, polyvinyl siloxane-polyether hybrid with closed tray, polyvinyl siloxane-polyether hybrid with open tray nonsplinted copings, and polyvinyl siloxanepolyether hybrid with open tray splinted copings. Five samples of each group were evaluated. A total of 45 impressions were taken. A stainless steel master metal framework with three internal hex implants was fabricated and used to generate the samples. A common condensation silicone putty spacer was applied over the impression copings attached to the implants, which was then duplicated. All trays were fabricated on this duplicated silicone die using light cure acrylic resin. Trays to be used for open tray techniques had their top removed for gaining access to screws of the impression copings. Splinting of coping for OS group was done using pattern resin. Impressions were poured, and master cast was generated. Interimplant distance was measured using stereomicroscope and an image analyzing software. RESULTS Open nonsplinted technique resulted in significantly better replication of implant positions compared to open splinted and closed techniques. Hybrid impression material depicted significantly better dimensional accuracy than polyether and polyvinyl siloxane. Hybrid open nonsplinted depicted least mean difference in interimplant distance, followed by hybrid open splinted and polyether open splinted groups. Polyvinyl siloxane closed tray showed maximum difference in interimplant distance in comparison with other groups. CONCLUSIONS Polyvinyl siloxane-polyether hybrid impression material and open nonsplinted technique gave best replication of implant positions on the master cast. CONCLUSIONS Accuracy of impressions and casts is of great importance for the fabrication and long-term clinical success of precisely fitting implant-retained prostheses.

UI MeSH Term Description Entries
D003760 Dental Impression Materials Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials. Dental Impression Material,Impression Material, Dental,Impression Materials, Dental,Material, Dental Impression,Materials, Dental Impression
D003761 Dental Impression Technique Procedure of producing an imprint or negative likeness of the teeth and/or edentulous areas. Impressions are made in plastic material which becomes hardened or set while in contact with the tissue. They are later filled with plaster of Paris or artificial stone to produce a facsimile of the oral structures present. Impressions may be made of a full complement of teeth, of areas where some teeth have been removed, or in a mouth from which all teeth have been extracted. (Illustrated Dictionary of Dentistry, 1982) Dental Impression Technic,Dental Impression Technics,Dental Impression Techniques,Impression Technic, Dental,Impression Technics, Dental,Impression Technique, Dental,Impression Techniques, Dental,Technic, Dental Impression,Technics, Dental Impression,Technique, Dental Impression,Techniques, Dental Impression
D003765 Models, Dental Presentation devices used for patient education and technique training in dentistry. Dental Models,Dental Model,Model, Dental
D000180 Acrylic Resins Polymers of high molecular weight which are derived from acrylic acid, methacrylic acid or other related compounds and are capable of being molded and then hardened to form useful components. Acrylic Resin,Resin, Acrylic,Resins, Acrylic
D015921 Dental Implants Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth. Dental Implants, Mini,Dental Prosthesis, Surgical,Implants, Dental,Dental Implant,Dental Prostheses, Surgical,Implant, Dental,Prostheses, Surgical Dental,Prosthesis, Surgical Dental,Surgical Dental Prostheses,Surgical Dental Prosthesis,Dental Implant, Mini,Mini Dental Implant,Mini Dental Implants

Related Publications

Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
January 2012, The journal of contemporary dental practice,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
January 2015, Journal of Indian Prosthodontic Society,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
December 2022, Journal of advanced pharmaceutical technology & research,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
January 2012, The International journal of prosthodontics,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
February 2016, Journal of clinical and diagnostic research : JCDR,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
August 2018, The journal of contemporary dental practice,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
January 2016, Journal of Indian Prosthodontic Society,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
June 2011, The Journal of prosthetic dentistry,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
August 2019, The journal of contemporary dental practice,
Shabab A Khan, and Sunita Singh, and Nudrat Neyaz, and Mishan Mohohar Jaiswal, and Aditi S Tanwar, and Amitu Singh
September 1995, Journal of prosthodontics : official journal of the American College of Prosthodontists,
Copied contents to your clipboard!