Marginal adaptation of inlay-retained adhesive fixed partial dentures after mechanical and thermal stress: An in vitro study
Identifieur interne : 008958 ( Main/Exploration ); précédent : 008957; suivant : 008959Marginal adaptation of inlay-retained adhesive fixed partial dentures after mechanical and thermal stress: An in vitro study
Auteurs : Till N. Göehring [Suisse] ; Ove A. Peters [Suisse] ; Felix Lutz [Suisse]Source :
- The Journal of Prosthetic Dentistry [ 0022-3913 ] ; 2001.
English descriptors
- KwdEn :
- Abutment, Aluminum bases, Canine, Cavity preparation, Cavity preparations, Cervical surfaces, Clinical investigations, Composite interface, Composite restorations, Dent, Dent mater, Dentin, Dentistry, Denture, Enamel, Esthet dent, Fpd, Fracture, Grain size, Hairline cracks, Hawe neos, Heliobond, Imperfection, Inlay, Krejci, Luting, Lutz, Marginal adaptation, Marginal integrity, Marginal quality, Molar, Occlusal, Operative technique, Optimal margins, Original magnification, Palatal, Palatal surface, Partial dentures, Pontic, Preventative dentistry, Product information, Prosthet dent, Prosthetic, Prosthetic dentistry, Prosthetic dentistry peters, Rubber dampers, Significant differences, Targis, Tetric, Tetric ceram, Thermomechanical, Thermomechanical loading, Tooth preparation, Tooth preparations, Tooth structure, Ultrasonic device, Vectris, Vectris frame, Vectris pontic.
- Teeft :
- Abutment, Aluminum bases, Canine, Cavity preparation, Cavity preparations, Cervical surfaces, Clinical investigations, Composite interface, Composite restorations, Dent, Dent mater, Dentin, Dentistry, Denture, Enamel, Esthet dent, Fpd, Fracture, Grain size, Hairline cracks, Hawe neos, Heliobond, Imperfection, Inlay, Krejci, Luting, Lutz, Marginal adaptation, Marginal integrity, Marginal quality, Molar, Occlusal, Operative technique, Optimal margins, Original magnification, Palatal, Palatal surface, Partial dentures, Pontic, Preventative dentistry, Product information, Prosthet dent, Prosthetic, Prosthetic dentistry, Prosthetic dentistry peters, Rubber dampers, Significant differences, Targis, Tetric, Tetric ceram, Thermomechanical, Thermomechanical loading, Tooth preparation, Tooth preparations, Tooth structure, Ultrasonic device, Vectris, Vectris frame, Vectris pontic.
Abstract
Abstract: Statement of problem. There are no studies that analyze the long-term durability of minimally invasive fixed partial dentures (FPDs) by comparing different methods of adhesive bonding. Purpose. This in vitro study examined the influence of cavity design and operative technique on the marginal adaptation of resin-bonded composite FPDs. Material and methods. Slot-inlay tooth preparations with cavity margins located in enamel were prepared in 18 maxillary canines and 18 maxillary first molars designated as abutments. The specimens were divided equally into 3 experimental groups. In all groups, butt joint tooth preparations were created in canines and molars. In group 2, canines were prepared additionally with a 1.5-mm wide palatal bevel in enamel. After pretests with modification spaces of 11 and 17 mm (length), 2 missing premolars were replaced by the ceromer Targis and reinforced with the glass-fiber material Vectris. The prostheses were inserted with Tetric Ceram with use of an ultrasonic-supported, high-viscosity technique. Restorations were selectively bonded to cavity finish lines in groups 1 and 2 (“selective bonding”). In group 3, restorations were bonded totally to the whole cavity surface (“total bonding”). The restorations were stressed in a computer-controlled masticator. Marginal quality was examined with an SEM at ×200. Results. The percent area of optimal margins after thermomechanical loading between composite and enamel in each group was as follows: group 1, 86.2% ± 12.3% for canines and 95.5% ± 3.5% for molars; group 2, 95.3% ± 2.1% for canines and 96.2% ± 2.7% for molars; and group 3, 95% ± 0.9% for canines and 86.4% ± 3.2% for molars. The marginal quality for molars inserted with total bonding was significantly lower (P≤.05). Conclusion. Within the limitations of this study, the selective bonding technique for slot inlay-retained fixed partial dentures resulted in a negligible loss of marginal quality after extensive mechanical and thermal stress. The selective bonding technique is recommended for box-shaped cavity preparations. (J Prosthet Dent 2001;86:81-92.)
Url:
DOI: 10.1067/mpr.2001.115072
Affiliations:
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<term>Cavity preparation</term>
<term>Cavity preparations</term>
<term>Cervical surfaces</term>
<term>Clinical investigations</term>
<term>Composite interface</term>
<term>Composite restorations</term>
<term>Dent</term>
<term>Dent mater</term>
<term>Dentin</term>
<term>Dentistry</term>
<term>Denture</term>
<term>Enamel</term>
<term>Esthet dent</term>
<term>Fpd</term>
<term>Fracture</term>
<term>Grain size</term>
<term>Hairline cracks</term>
<term>Hawe neos</term>
<term>Heliobond</term>
<term>Imperfection</term>
<term>Inlay</term>
<term>Krejci</term>
<term>Luting</term>
<term>Lutz</term>
<term>Marginal adaptation</term>
<term>Marginal integrity</term>
<term>Marginal quality</term>
<term>Molar</term>
<term>Occlusal</term>
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<term>Optimal margins</term>
<term>Original magnification</term>
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<term>Palatal surface</term>
<term>Partial dentures</term>
<term>Pontic</term>
<term>Preventative dentistry</term>
<term>Product information</term>
<term>Prosthet dent</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Prosthetic dentistry peters</term>
<term>Rubber dampers</term>
<term>Significant differences</term>
<term>Targis</term>
<term>Tetric</term>
<term>Tetric ceram</term>
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<term>Tooth preparations</term>
<term>Tooth structure</term>
<term>Ultrasonic device</term>
<term>Vectris</term>
<term>Vectris frame</term>
<term>Vectris pontic</term>
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<term>Cervical surfaces</term>
<term>Clinical investigations</term>
<term>Composite interface</term>
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<term>Dent mater</term>
<term>Dentin</term>
<term>Dentistry</term>
<term>Denture</term>
<term>Enamel</term>
<term>Esthet dent</term>
<term>Fpd</term>
<term>Fracture</term>
<term>Grain size</term>
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<term>Hawe neos</term>
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<term>Imperfection</term>
<term>Inlay</term>
<term>Krejci</term>
<term>Luting</term>
<term>Lutz</term>
<term>Marginal adaptation</term>
<term>Marginal integrity</term>
<term>Marginal quality</term>
<term>Molar</term>
<term>Occlusal</term>
<term>Operative technique</term>
<term>Optimal margins</term>
<term>Original magnification</term>
<term>Palatal</term>
<term>Palatal surface</term>
<term>Partial dentures</term>
<term>Pontic</term>
<term>Preventative dentistry</term>
<term>Product information</term>
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<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Prosthetic dentistry peters</term>
<term>Rubber dampers</term>
<term>Significant differences</term>
<term>Targis</term>
<term>Tetric</term>
<term>Tetric ceram</term>
<term>Thermomechanical</term>
<term>Thermomechanical loading</term>
<term>Tooth preparation</term>
<term>Tooth preparations</term>
<term>Tooth structure</term>
<term>Ultrasonic device</term>
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<front><div type="abstract" xml:lang="en">Abstract: Statement of problem. There are no studies that analyze the long-term durability of minimally invasive fixed partial dentures (FPDs) by comparing different methods of adhesive bonding. Purpose. This in vitro study examined the influence of cavity design and operative technique on the marginal adaptation of resin-bonded composite FPDs. Material and methods. Slot-inlay tooth preparations with cavity margins located in enamel were prepared in 18 maxillary canines and 18 maxillary first molars designated as abutments. The specimens were divided equally into 3 experimental groups. In all groups, butt joint tooth preparations were created in canines and molars. In group 2, canines were prepared additionally with a 1.5-mm wide palatal bevel in enamel. After pretests with modification spaces of 11 and 17 mm (length), 2 missing premolars were replaced by the ceromer Targis and reinforced with the glass-fiber material Vectris. The prostheses were inserted with Tetric Ceram with use of an ultrasonic-supported, high-viscosity technique. Restorations were selectively bonded to cavity finish lines in groups 1 and 2 (“selective bonding”). In group 3, restorations were bonded totally to the whole cavity surface (“total bonding”). The restorations were stressed in a computer-controlled masticator. Marginal quality was examined with an SEM at ×200. Results. The percent area of optimal margins after thermomechanical loading between composite and enamel in each group was as follows: group 1, 86.2% ± 12.3% for canines and 95.5% ± 3.5% for molars; group 2, 95.3% ± 2.1% for canines and 96.2% ± 2.7% for molars; and group 3, 95% ± 0.9% for canines and 86.4% ± 3.2% for molars. The marginal quality for molars inserted with total bonding was significantly lower (P≤.05). Conclusion. Within the limitations of this study, the selective bonding technique for slot inlay-retained fixed partial dentures resulted in a negligible loss of marginal quality after extensive mechanical and thermal stress. The selective bonding technique is recommended for box-shaped cavity preparations. (J Prosthet Dent 2001;86:81-92.)</div>
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