Composite resin shrinks during polymerization producing marginal gaps around composite restorations. While incremental placement of composite resin has been used to control shrinkage, this technique is time consuming. Curing lights have been developed with varying outputs and curing cycles to speed curing and reduce marginal gaps in composite restorations. This investigation measured the marginal openings of Class V resin restorations cured with four different light-curing units. High-intensity curing units provided rapid curing to composite resin increments, but the two-phase curing cycle afforded significantly better marginal integrity than the other units.
{"title":"An evaluation of four light-curing units comparing soft and hard curing.","authors":"J O Burgess, M DeGoes, R Walker, A H Ripps","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Composite resin shrinks during polymerization producing marginal gaps around composite restorations. While incremental placement of composite resin has been used to control shrinkage, this technique is time consuming. Curing lights have been developed with varying outputs and curing cycles to speed curing and reduce marginal gaps in composite restorations. This investigation measured the marginal openings of Class V resin restorations cured with four different light-curing units. High-intensity curing units provided rapid curing to composite resin increments, but the two-phase curing cycle afforded significantly better marginal integrity than the other units.</p>","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"125-32; quiz 134"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article discusses a method for the predictable fabrication of fixed detachable maxillary reconstructions that abut and precisely follow the gingival contours--regardless of implant angulation or position. The technique reorders the traditional implant protocol and delays abutment selection until the definitive tooth position has been established. In this manner, final abutment selection and framework design become a single, integrated process that results in improved aesthetics, reduced angulation difficulties, and elimination of the phonetic concerns traditionally associated with fixed maxillary prostheses.
{"title":"The profile prosthesis: an aesthetic fixed implant-supported restoration for the resorbed maxilla.","authors":"P A Schnitman","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This article discusses a method for the predictable fabrication of fixed detachable maxillary reconstructions that abut and precisely follow the gingival contours--regardless of implant angulation or position. The technique reorders the traditional implant protocol and delays abutment selection until the definitive tooth position has been established. In this manner, final abutment selection and framework design become a single, integrated process that results in improved aesthetics, reduced angulation difficulties, and elimination of the phonetic concerns traditionally associated with fixed maxillary prostheses.</p>","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"143-51"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Although glass inserts have enabled the use of direct restorative procedures for the placement of inlays and onlays, these techniques are often unable to address elementary patient concerns (i.e., aesthetics, fit, expense). The advent of a novel process that standardizes preparation design and facilitates the use of advanced restorative materials may provide an alternate means of providing acceptable treatment. This article highlights the use of a sonic preparation system with ceramic inserts to develop aesthetic direct inlay restorations that demonstrate the qualities traditionally exhibited by indirect ceramic materials.
{"title":"Direct inlay restorations: utilization of sonic preparation technology in conjunction with ceramic inserts.","authors":"M J Koczarski, A L Mitchell","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Although glass inserts have enabled the use of direct restorative procedures for the placement of inlays and onlays, these techniques are often unable to address elementary patient concerns (i.e., aesthetics, fit, expense). The advent of a novel process that standardizes preparation design and facilitates the use of advanced restorative materials may provide an alternate means of providing acceptable treatment. This article highlights the use of a sonic preparation system with ceramic inserts to develop aesthetic direct inlay restorations that demonstrate the qualities traditionally exhibited by indirect ceramic materials.</p>","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"67-73; quiz 74"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Use of porcelain laminate veneers for the correction of isolated microdontia.","authors":"T Aherne","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"84-6, 88"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The utilization of advanced technology as an instructional tool.","authors":"L H Silverstein, P C Shatz, R A Gornstein","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"91-2"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Achieving an accurate final impression is the initial step in the fabrication of the definitive restoration. If polyether is to be utilized for the final impression, obtaining an additional impression may minimize the risk of fractured abutments. In addition, transportation conditions to the dental laboratory that may expose the impression to extreme temperatures should necessitate the pouring of the impression prior to shipping.
{"title":"Current controversies in final impressions.","authors":"A Sadan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Achieving an accurate final impression is the initial step in the fabrication of the definitive restoration. If polyether is to be utilized for the final impression, obtaining an additional impression may minimize the risk of fractured abutments. In addition, transportation conditions to the dental laboratory that may expose the impression to extreme temperatures should necessitate the pouring of the impression prior to shipping.</p>","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"42"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J A Sorensen, M Cruz, W T Mito, O Raffeiner, H R Meredith, H P Foser
A lithium disilicate glass-ceramic material has recently been developed for the fabrication of 3-unit fixed partial dentures. Conducted on 60 restorations, this initial trial attempted to define clinical indications and establish design principles for fixed partial dentures fabricated of this ceramic material. The design requisites varied depending on placement on the arch, and the authors concluded that lithium disilicate restorations caused reduced antagonist structure or opposing tooth wear. This investigation demonstrated that when a novel ceramic system was utilized for 3-unit restorations replacing up to the first premolar and attained minimal criteria for connector dimensions, an acceptable clinical success rate was achieved.
{"title":"A clinical investigation on three-unit fixed partial dentures fabricated with a lithium disilicate glass-ceramic.","authors":"J A Sorensen, M Cruz, W T Mito, O Raffeiner, H R Meredith, H P Foser","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A lithium disilicate glass-ceramic material has recently been developed for the fabrication of 3-unit fixed partial dentures. Conducted on 60 restorations, this initial trial attempted to define clinical indications and establish design principles for fixed partial dentures fabricated of this ceramic material. The design requisites varied depending on placement on the arch, and the authors concluded that lithium disilicate restorations caused reduced antagonist structure or opposing tooth wear. This investigation demonstrated that when a novel ceramic system was utilized for 3-unit restorations replacing up to the first premolar and attained minimal criteria for connector dimensions, an acceptable clinical success rate was achieved.</p>","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"11 1","pages":"95-106; quiz 108"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21088520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aesthetic implant restorations in partially edentulous patients: a technical note.","authors":"D F Cornell, P S Wöhrle","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77327,"journal":{"name":"Practical periodontics and aesthetic dentistry : PPAD","volume":"10 9","pages":"1157-61"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20966438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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