Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation
The purpose of this study is to identify the stress levels that act in inlay and onlay restorations, according to the direction and value of the external force applied. The study was conducted using the Finite Element Method (FEM) of three types of ceramics: pressed lithium disilicate and monolith,...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-09-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/17/5048 |
| _version_ | 1797521122783133696 |
|---|---|
| author | Otilia Chirca Cornelia Biclesanu Anamaria Florescu Dan Ioan Stoia Anna Maria Pangica Alexandru Burcea Marius Vasilescu Iulian Vasile Antoniac |
| author_facet | Otilia Chirca Cornelia Biclesanu Anamaria Florescu Dan Ioan Stoia Anna Maria Pangica Alexandru Burcea Marius Vasilescu Iulian Vasile Antoniac |
| author_sort | Otilia Chirca |
| collection | DOAJ |
| description | The purpose of this study is to identify the stress levels that act in inlay and onlay restorations, according to the direction and value of the external force applied. The study was conducted using the Finite Element Method (FEM) of three types of ceramics: pressed lithium disilicate and monolith, zirconia, and three different adhesive systems: self-adhesive, universal, and dual-cure cements. In addition to FEM, the inlay/onlay-dental structure interface analysis was performed by means of Scanning Electron Microscopy (SEM). The geometric models were reconstructed based on computer tomography images of an undamaged molar followed by geometrical procedures of inducing the inlay and onlay reconstructions. The two functional models were then simulated for different orientations of external force and different material properties, according to the considered adhesives and ceramics. The Scanning Electron Microscopy (SEM) was conducted on 30 extracted teeth, divided into three groups according to the adhesive cement type. Both FEM simulation and SEM investigations reveal very good mechanical behavior of the adhesive-dental structure and adhesive-ceramic interfaces for inlay and onlay reconstructions. All results lead to the conclusion that a physiological mastication force applied, regardless of direction, cannot produce a mechanical failure of either inlay or onlay reconstructions. The adhesive bond between the restorations and the dental structure can stabilize the ceramic restorations, resulting in a higher strength to the action of external forces. |
| first_indexed | 2024-03-10T08:08:08Z |
| format | Article |
| id | doaj.art-b88f94a98c8b4f7ba3e1806cf2da970d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T08:08:08Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b88f94a98c8b4f7ba3e1806cf2da970d2023-11-22T10:55:38ZengMDPI AGMaterials1996-19442021-09-011417504810.3390/ma14175048Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM InvestigationOtilia Chirca0Cornelia Biclesanu1Anamaria Florescu2Dan Ioan Stoia3Anna Maria Pangica4Alexandru Burcea5Marius Vasilescu6Iulian Vasile Antoniac7Organizing Institution of University Doctoral Studies, Doctoral School of Dentistry, “Titu Maiorescu” University, 67A Gh. Petrascu Street, 040441 Bucharest, RomaniaFaculty of Dental Medicine, “Titu Maiorescu” University, 67A Gh. Petrascu Street, 040441 Bucharest, RomaniaFaculty of Dental Medicine, “Titu Maiorescu” University, 67A Gh. Petrascu Street, 040441 Bucharest, RomaniaDepartment of Mechanics and Strength of Materials, Politehnica University of Timisoara, 1 Mihai Viteazul Avenue, 300222 Timisoara, RomaniaFaculty of Dental Medicine, “Titu Maiorescu” University, 67A Gh. Petrascu Street, 040441 Bucharest, RomaniaFaculty of Dental Medicine, “Titu Maiorescu” University, 67A Gh. Petrascu Street, 040441 Bucharest, RomaniaDepartment of Materials Science and Physical Metallurgy, Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaDepartment of Materials Science and Physical Metallurgy, Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaThe purpose of this study is to identify the stress levels that act in inlay and onlay restorations, according to the direction and value of the external force applied. The study was conducted using the Finite Element Method (FEM) of three types of ceramics: pressed lithium disilicate and monolith, zirconia, and three different adhesive systems: self-adhesive, universal, and dual-cure cements. In addition to FEM, the inlay/onlay-dental structure interface analysis was performed by means of Scanning Electron Microscopy (SEM). The geometric models were reconstructed based on computer tomography images of an undamaged molar followed by geometrical procedures of inducing the inlay and onlay reconstructions. The two functional models were then simulated for different orientations of external force and different material properties, according to the considered adhesives and ceramics. The Scanning Electron Microscopy (SEM) was conducted on 30 extracted teeth, divided into three groups according to the adhesive cement type. Both FEM simulation and SEM investigations reveal very good mechanical behavior of the adhesive-dental structure and adhesive-ceramic interfaces for inlay and onlay reconstructions. All results lead to the conclusion that a physiological mastication force applied, regardless of direction, cannot produce a mechanical failure of either inlay or onlay reconstructions. The adhesive bond between the restorations and the dental structure can stabilize the ceramic restorations, resulting in a higher strength to the action of external forces.https://www.mdpi.com/1996-1944/14/17/5048dental ceramicsadhesive luting systemsFEM simulationSEM investigationinterface |
| spellingShingle | Otilia Chirca Cornelia Biclesanu Anamaria Florescu Dan Ioan Stoia Anna Maria Pangica Alexandru Burcea Marius Vasilescu Iulian Vasile Antoniac Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation Materials dental ceramics adhesive luting systems FEM simulation SEM investigation interface |
| title | Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation |
| title_full | Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation |
| title_fullStr | Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation |
| title_full_unstemmed | Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation |
| title_short | Adhesive-Ceramic Interface Behavior in Dental Restorations. FEM Study and SEM Investigation |
| title_sort | adhesive ceramic interface behavior in dental restorations fem study and sem investigation |
| topic | dental ceramics adhesive luting systems FEM simulation SEM investigation interface |
| url | https://www.mdpi.com/1996-1944/14/17/5048 |
| work_keys_str_mv | AT otiliachirca adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT corneliabiclesanu adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT anamariaflorescu adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT danioanstoia adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT annamariapangica adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT alexandruburcea adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT mariusvasilescu adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation AT iulianvasileantoniac adhesiveceramicinterfacebehaviorindentalrestorationsfemstudyandseminvestigation |