Restorative Dentistry & Endodontics

Research Article

Evaluation of internal adaptation of dental adhesive restorations using micro-CT: Oh-Hyun Kwon, Sung-Ho Park; Restor Dent Endod 2012;37(1):41-49. Published online March 2, 2012; DOI: https://doi.org/10.5395/rde.2012.37.1.41

Objectives

The internal adaptation of composite restorations with or without resin modified glass ionomer cement (RMGIC) was analyzed non-destructively using Microcomputed tomography (micro-CT).

Materials and Methods

Thirty intact human teeth were used. The specimens were divided into 3 groups. In the control group, the cavities were etched with 10% phosphoric acid for 15 sec. Composite resin was filled into the cavity without adhesive. In group 1, light cured glass ionomer cement (GIC, Fuji II LC, GC) was applied as a base. The cavities were then etched, bonded, light cured and filled with composites. In group 2, the cavities were then etched, bonded, light cured and filled with composites without base application. They were immersed in a 25% silver nitrate solution. Micro-CT was performed before and after mechanical loading. One-way ANOVA with Duncan analysis was used to compare the internal adaptation between the groups before or after loading. A paired t-test was used to compare internal adaptation before and after mechanical loading. All statistical inferences were made within the 95% confidence interval.

Results

The silver nitrate solution successfully penetrated into the dentinal tubules from the pulp spaces, and infiltrated into the gap between restoration and pulpal floor. Group 2 showed a lower adaptation than the control group and group 1 (p < 0.05). There was no significant difference between the control group and group 1. For all groups, there was a significant difference between before and after mechanical loading (p < 0.05).

Conclusions

The internal adaptation before and after loading was better when composites were bonded to tooth using adhesive than composites based with RMGIC.

Citations

Citations to this article as recorded by

Micro-computed tomography in preventive and restorative dental research: A review
Mehrsima Ghavami-Lahiji, Reza Tayefeh Davalloo, Gelareh Tajziehchi, Paria Shams
Imaging Science in Dentistry.2021; 51(4): 341. CrossRef
Gaps at the interface between dentine and self‐adhesive resin cement in post‐endodontic restorations quantified in 3D by phase contrast‐enhanced micro‐CT
A. P. Soares, K. Bitter, A. Lagrange, A. Rack, H. Shemesh, P. Zaslansky
International Endodontic Journal.2020; 53(3): 392. CrossRef
Hard X-ray phase-contrast-enhanced micro-CT for quantifying interfaces within brittle dense root-filling-restored human teeth
Ana Prates Soares, Uwe Blunck, Kerstin Bitter, Sebastian Paris, Alexander Rack, Paul Zaslansky
Journal of Synchrotron Radiation.2020; 27(4): 1015. CrossRef
Comparison of micro-CT and conventional dye penetration for microleakage assessment after different aging conditions
Rayssa Ferreira Zanatta, Annette Wiegand, Christian Dullin, Alessandra Bühler Borges, Carlos Rocha Gomes Torres, Marta Rizk
International Journal of Adhesion and Adhesives.2019; 89: 161. CrossRef
Comparison of Internal Adaptation of Bulk-fill and Increment-fill Resin Composite Materials
FS Alqudaihi, NB Cook, KE Diefenderfer, MC Bottino, JA Platt
Operative Dentistry.2019; 44(1): E32. CrossRef
Polymerization shrinkage assessment of dental resin composites: a literature review
Dalia Kaisarly, Moataz El Gezawi
Odontology.2016; 104(3): 257. CrossRef
Non-destructive evaluation of an internal adaptation of resin composite restoration with swept-source optical coherence tomography and micro-CT
Seung-Hoon Han, Alireza Sadr, Junji Tagami, Sung-Ho Park
Dental Materials.2016; 32(1): e1. CrossRef
Micro-CT evaluation of internal adaptation in resin fillings with different dentin adhesives
Seung-Hoon Han, Sung-Ho Park
Restorative Dentistry & Endodontics.2014; 39(1): 24. CrossRef

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Original Article

New quantitative measuring technique for microleakage of the restored tooth through 3D reconstruction: Sang-Yoon Ha, Dong-Hoon Shin; J Korean Acad Conserv Dent 2004;29(5):413-422. Published online September 30, 2004; DOI: https://doi.org/10.5395/JKACD.2004.29.5.413

Abstract PDF PubReader ePub

Established microleakage tests have their own disadvantages. In this study, 3D reconstruction method was tried to overcome these disadvantages.

Four types of microleakage tests were used and relationships among them were estimated: penetrated dye volume; marginal adaptability; degree of dye penetration and relative penetrated length to cavity wall.

Twenty-four Class V cavities were bulk filled with composite (Esthet X) following surface treatments: N group (no treatment); E group (etching only); T group (etching + Prime & Bond NT). 50% silver nitrate was used as a dye solution after thermocycling (5℃ & 55℃, 1,000 times). Teeth were serially ground with a thickness of 0.2 mm. Volume of dye penetration was estimated from a three-dimensionally reconstructed image with a software (3D-DOCTOR). Percentage of margin without gap was estimated from SEM and degree of dye penetration and the relative length of dye penetration to overall cavity wall were also estimated.

ANOVA and Scheffe test for dye volume, Kruskal-Wallis and Mann-Whitney test for marginal quality, Spearman's rho test for checking of relationships among methods were used.

The results were as follows:

1. Dye penetration could be seen from several directions, furthermore, its volumetric estimation was possible.

2. Reverse relationship was found between dye volume and marginal quality (r = -0.881 / p = 0.004).

3. Very low relationship was seen between dye volume and two-dimensional tests (degree of dye penetration and relative length). However, 2D evaluation methods showed high relationship (p = 0.002-0.054) each other.

4. Three times vertical section could be recommended as a 2D test.

Citations

Citations to this article as recorded by

Estimation of relation between techniques of dye penetration for microleakage and SEM evaluation for marginal adaptation of the restoration
Soon-Joo Hwang, Dong-Hoon Shin
Journal of Korean Academy of Conservative Dentistry.2006; 31(5): 337. CrossRef
Microleakage of the class V cavity according to restoration site and cavity size using SEM and three-dimensional reconstruction techniques
In-Seo Yang, Dong-Hoon Shin
Journal of Korean Academy of Conservative Dentistry.2005; 30(2): 112. CrossRef

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