Effect of Fiber Nets, Application Techniques and Flowable Composites on Microleakage and the Effect of Fiber Nets on Polymerization Shrinkage in Class II MOD Cavities

10.2341/08-57 ◽  
2009 ◽  
Vol 34 (2) ◽  
pp. 174-180 ◽  
Author(s):  
E. Ozel ◽  
M. Soyman
Keyword(s):  
Clinical Relevance ◽  
Class Ii ◽  
Clinical Applications ◽  
Polymerization Shrinkage ◽  
Composite Restorations ◽  
Incremental Placement ◽  
Application Techniques ◽  
Flowable Composites

Clinical Relevance Fiber nets applied to Class II composite restorations resulted in a significant reduction in microleakage. Fiber nets also decreased polymerization shrinkage. Therefore, these materials may be acceptable for clinical applications. Incremental placement remains the preferred restorative technique for posterior composite restorations.

scholarly journals Comparison of Proximal Contacts of Class II Resin Composite Restorations In Vitro

2006 ◽  
Vol 31 (6) ◽  
pp. 688-693 ◽  
Author(s):  
B. A. C. Loomans ◽  
N. J. M. Opdam ◽  
F. J. M. Roeters ◽  
E. M. Bronkhorst ◽  
R. C. W. Burgersdijk
Keyword(s):  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Composite Restorations ◽  
Composite Restoration

Clinical Relevance When placing a Class II resin composite restoration, the use of sectional matrix systems and separation rings to obtain tight proximal contacts is recommended.

Gingival Microleakage of Class II Resin Composite Restorations with Fiber Inserts

10.2341/06-86 ◽  
2007 ◽  
Vol 32 (3) ◽  
pp. 298-305 ◽  
Author(s):  
O. El-Mowafy ◽  
W. El-Badrawy ◽  
A. Eltanty ◽  
K. Abbasi ◽  
N. Habib
Keyword(s):  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Composite Restorations ◽  
Fiber Inserts

Clinical Relevance Fiber inserts incorporated at the gingival floor of Class II composite restorations resulted in a significant reduction of microleakage scores as compared to restorations made without inserts. This may lead to a reduced incidence of recurrent caries.

Factors Associated with Microleakage in Class II Resin Composite Restorations

10.2341/06-16 ◽  
2007 ◽  
Vol 32 (1) ◽  
pp. 60-66 ◽  
Author(s):  
S. Idriss ◽  
T. Abduljabbar ◽  
C. Habib ◽  
R. Omar
Keyword(s):  
Clinical Outcomes ◽  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Gap Size ◽  
Marginal Gap ◽  
Factors Associated ◽  
Composite Restorations ◽  
Placement Technique

Clinical Relevance Even though marginal gap size was not shown to be a direct predictor for the extent of microleakage in resin composite restorations, both material and placement technique appear to be important determinants in microleakage and, thus, probably in clinical outcomes.

A Study of Microleakage in Class II Composite Restorations Using Four Different Curing Techniques

10.2341/06-98 ◽  
2007 ◽  
Vol 32 (4) ◽  
pp. 336-340 ◽  
Author(s):  
N. Gharizadeh ◽  
K. Moradi ◽  
M. H. Haghighizadeh
Keyword(s):  
Clinical Relevance ◽  
Class Ii ◽  
Composite Restorations

Clinical Relevance For bonded direct Class II restorations, the use of transparent matrices or metal matrices combined with light conducting instruments, such as light tips, should be favored because marginal leakage is significantly lower when compared to using metal matrices alone.

The Influence of Matrix Type on the Proximal Contact in Class II Resin Composite Restorations

2010 ◽  
Vol 35 (4) ◽  
pp. 454-462 ◽  
Author(s):  
D. Kampouropoulos ◽  
C. Paximada ◽  
M. Loukidis ◽  
A. Kakaboura
Keyword(s):  
Contact Area ◽  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Matrix Type ◽  
Composite Restorations

Clinical Relevance The types of matrices assessed, metal or transparent, circumferential or sectional, straight or pre-contoured, were not able to adequately reconstruct all the characteristics of the proximal contact area of an intact tooth in Class II resin composite restorations.

scholarly journals Evaluation of Proximal Contact Tightness of Class II Resin Composite Restorations

2010 ◽  
Vol 35 (1) ◽  
pp. 37-43 ◽  
Author(s):  
M. H. Saber ◽  
A. C. Loomans ◽  
A. El Zohairy ◽  
C. E. Dörfer ◽  
W. El-Badrawy
Keyword(s):  
Contact Area ◽  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Composite Restorations

Clinical Relevance The use of sectional matrix bands combined with a separation ring and wedge is recommended to reconstruct the proximal contact area of Class II resin composite restorations

Proximal contact tightness for Class II direct composite resin restorations: a literature review

Dental Update ◽  
2021 ◽  
Vol 48 (9) ◽  
pp. 733-740
Author(s):  
Oliver Hinton
Keyword(s):  
Oral Health ◽  
Literature Review ◽  
Clinical Relevance ◽  
Composite Resin ◽  
Class Ii ◽  
Clinical Factors ◽  
Polymerization Shrinkage ◽  
Patient Will ◽  
Composite Resin Restorations ◽  
Resin Restorations

This article reviews the literature regarding factors that affect proximal contact tightness (PCT) when restoring Class II cavities with direct composite resin. The PCT between two adjacent teeth is an important factor in maintaining oral health by ensuring that tooth positions remain stable, food is deflected away during mastication, dental papillae are maintained and to facilitate hygienic cleaning. If open contacts are created, there is a greater chance that the patient will experience periodontal problems or caries. Using sectional matrix systems with separation rings, and using materials with less polymerization shrinkage are effective methods to increase PCT and create significantly tighter contacts compared with using circumferential matrix systems. CPD/Clinical Relevance: Understating the clinical factors that affect proximal contact tightness between adjacent teeth is important to achieve optimal contacts in direct composite resin restorations to maintain oral health.

Influence of Curing Methods and Matrix Type on the Marginal Seal of Class II Resin-based Composite Restorations In Vitro

2006 ◽  
Vol 31 (1) ◽  
pp. 97-105 ◽  
Author(s):  
N. Hofmann ◽  
A. Hunecke
Keyword(s):  
High Intensity ◽  
Clinical Relevance ◽  
Class Ii ◽  
Matrix Type ◽  
Composite Restorations ◽  
Soft Start ◽  
Curing Methods ◽  
Photo Curing ◽  
Selection Of

Clinical Relevance Selection of photo-curing protocol (high intensity vs soft-start) and matrix type (transparent vs metal) did not influence the margin quality and marginal seal of Class II resin-based composite restorations.

Comparison of Internal Adaptation in Class II Bulk-fill Composite Restorations Using Micro-CT

2017 ◽  
Vol 42 (2) ◽  
pp. 203-214 ◽  
Author(s):  
SH Han ◽  
SH Park
Keyword(s):  
Class Ii ◽  
Ct Images ◽  
Shrinkage Stress ◽  
Micro Ct ◽  
Polymerization Shrinkage ◽  
Composite Restorations ◽  
Group 3 ◽  
Internal Adaptation ◽  
Group 5 ◽  
Group 2

SUMMARY Purpose: This study compared the internal adaptation of bulk-fill composite restorations in class II cavities and explored the relationship between internal adaptation and polymerization shrinkage or stress. Methods and Materials: Standardized mesio-occluso-distal cavities were prepared in 40 extracted human third molars and randomly divided into five groups (n=8). After having been applied by total-etch XP bond (Dentsply Caulk, Milford, DE, USA) and light curing, the teeth were restored with the following resin composites: group 1, Filtek Z350 (3M ESPE, St. Paul, MN, USA); group 2, SDR (Dentsply Caulk, Milford, DE, USA) + Z350; group 3, Venus Bulk Fill (Heraeus Kulzer, Dormagen, Germany) + Z350; group 4, Tetric N-Ceram Bulk Fill (Ivoclar Vivadent, Schaan, Liechtenstein); and group 5, SonicFill (Kerr, West Collins, Orange, CA, USA). After thermo-mechanical load cycling, cross-sectional microcomputerized tomography (micro-CT) images were taken. Internal adaptation was measured as imperfect margin percentage (IM%), which was the percentage of defective margin length relative to whole margin length. On the micro-CT images, IM% was measured at five interfaces. Linear polymerization shrinkage (LS) and polymerization shrinkage stress (PS) were measured on each composite with a custom linometer and universal testing machine. To explore the correlation of IM% and LS or PS, the Pearson correlation test was used. Results: The IM% of the gingival and pulpal cavity floors were inferior to those of the cavity walls. The IM% values of the groups were found to be as follows: group 5 ≤ groups 1 and 4 ≤ group 2 ≤ group 3. The correlation analysis showed that the p value was 0.006 between LS and IM% and 0.003 between PS and IM%, indicating significant correlations (p<0.05). Conclusion: Flowable bulk-fill composites had a higher IM% and polymerization shrinkage stress than did packable bulk-fill and hybrid composites. In class II composite restoration, the gingival floor of the proximal box and pulpal floor of the cavity had higher IM% than did the buccal and lingual walls of the proximal box. LS and PS, which were measured under compliance-allowed conditions, were significantly related to internal adaptation.

Class II Composite Restorations: Importance of Cervical Enamel In Vitro

2011 ◽  
Vol 36 (2) ◽  
pp. 187-195 ◽  
Author(s):  
T Laegreid ◽  
NR Gjerdet ◽  
PV von Steyern ◽  
A-K Johansson
Keyword(s):  
Fracture Strength ◽  
Clinical Relevance ◽  
Class Ii ◽  
Composite Restorations ◽  
Composite Restoration

Clinical Relevance The presence of enamel at the cervical margin of a class II preparation increases the fracture strength of the composite restoration at the marginal ridge, but fractures are more complicated when they occur.

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