Effect of Saliva Contamination on Microleakage of Open Sandwich Restorations

The aim of this study was to evaluate the effect of saliva contamination (SCT) and re-etching time (RET) on the shear bond strength (SBS) of the Fluroshield sealant. Forty-five extracted third molars were sectioned and flattened until reach an enamel surface area. Then, all samples were etched for 30 sec with 35% phosphoric acid and then they were distributed into 9 groups (n=10) according to SCT and RET (seconds), respectively: G1- control (no SCT and no RET); G2- 30s and 0s; G3- 60s and 0s; G4-30s and 2s; G5- 30s and 5s; G6- 30s and 15s; G7-60s and 2s; G8- 60s and 5s; G9- 60s and 15s. The sealant was applied according to the manufacturer's instructions. The samples were stored in distilled water at 37ºC for 72h and subjected to the SBS test. The results indicated that there was no statistically significant difference between the groups (p>0.05). However, it could be noticed that: 1- the longer the SCT, the lower the SBS values; 2 - the longer the RET, the higher the SBS values. It could be concluded that there was a tendency to the shortest SCT (30s) associated to the longest RET (5 and 15s) to reach similar SBS values for the control group.

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Adhesion procedure for CAD/CAM resin crown bonding: Reduction of bond strengths due to artificial saliva contamination

Journal of Prosthodontic Research ◽

10.1016/j.jpor.2017.08.006 ◽

2018 ◽

Vol 62 (2) ◽

pp. 177-183 ◽

Cited By ~ 11

Author(s):

Asuka Kawaguchi-Uemura ◽

Atsushi Mine ◽

Mariko Matsumoto ◽

Yuko Tajiri ◽

Mami Higashi ◽

...

Keyword(s):

Artificial Saliva ◽

Cad Cam ◽

Bond Strengths ◽

Saliva Contamination

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Effect of saliva contamination on bond strength witha hydrophilic composite resin

Dental Press Journal of Orthodontics ◽

10.1590/s2176-94512013000100015 ◽

2013 ◽

Vol 18 (1) ◽

pp. 63-68 ◽

Cited By ~ 5

Author(s):

Mauren Bitencourt Deprá ◽

Josiane Xavier de Almeida ◽

Taís de Morais Alves da Cunha ◽

Luis Filipe Siu Lon ◽

Luciana Borges Retamoso ◽

...

Keyword(s):

Bond Strength ◽

Composite Resin ◽

Color Change ◽

Resin Composite ◽

Bonding Material ◽

Adhesive Remnant Index ◽

Composite Methods ◽

Standard Deviations ◽

Saliva Contamination

OBJECTIVE: To evaluate the influence of saliva contamination on the bond strength of metallic brackets bonded to enamel with hydrophilic resin composite. METHODS: Eighty premolars were randomly divided into 4 groups (n = 20) according to bonding material and contamination: G1) bonded with Transbond XT with no saliva contamination, G2) bonded with Transbond XT with saliva contamination, G3) bonded with Transbond Plus Color Change with no saliva contamination and G4) bonded with Transbond Plus Color Change with saliva contamination. The results were statistically analyzed (ANOVA/Tukey). RESULTS: The means and standard deviations (MPa) were: G1)10.15 ± 3.75; G2) 6.8 ± 2.54; G3) 9.3 ± 3.36; G4) 8.3 ± 2.95. The adhesive remnant index (ARI) ranged between 0 and 1 in G1 and G4. In G2 there was a prevalence of score 0 and similar ARI distribution in G3. CONCLUSION: Saliva contamination reduced bond strength when Transbond XT hydrophobic resin composite was used. However, the hydrophilic resin Transbond Plus Color Change was not affected by the contamination.

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Influence of saliva contamination on the shear bond strength of adhesives on enamel

Dental Press Journal of Orthodontics ◽

10.1590/s2176-94512012000200005 ◽

2012 ◽

Vol 17 (2) ◽

pp. 30.e1-30.e6 ◽

Cited By ~ 1

Author(s):

Tatiana Feres Assad-Loss ◽

Mônica Tostes ◽

José Nelson Mucha

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Saliva Contamination

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Microleakage of a Self-Adhesive Flowable Composite, a Self-Adhesive Fissure Sealant and a Conventional Fissure Sealant in Permanent Teeth with/without Saliva Contamination

Frontiers in Dentistry ◽

10.18502/fid.v14i4.2082 ◽

2019 ◽

Author(s):

Zohre Sadat Hosseinipour ◽

Alireza Heidari ◽

Mehdi Shahrabi ◽

Kiana Poorzandpoush

Keyword(s):

Practical Method ◽

Permanent Teeth ◽

Third Molars ◽

Fissure Sealants ◽

Fissure Sealant ◽

Dye Penetration ◽

Flowable Composite ◽

Saliva Contamination ◽

Vertise Flow

Objectives: Application of fissure sealants is a practical method for prevention of occlusal pit and fissure caries. Microleakage is an important factor affecting the success of fissure sealant treatment. This study aimed to assess the microleakage of a self-adhesive flowable composite, a self-adhesive fissure sealant and a conventional fissure sealant in permanent teeth with/without saliva contamination. Materials and Methods: This in vitro, experimental study evaluated 108 extracted human third molars, which were randomly divided into six groups (n=18) of control, Denu-Seal conventional fissure sealant applied on etched enamel with/without saliva contamination, Vertise Flow self-adhesive flowable composite applied on rinsed and dried enamel with/without saliva contamination and Prevent Seal self-adhesive fissure sealant applied on rinsed and dried enamel with/without saliva contamination. Microleakage was assessed using the dye penetration technique and subsequent observation of samples under a stereomicroscope. Data were analyzed using the Kruskal-Wallis and Tukey’s test. Results: Microleakage of the conventional fissure sealant with/without saliva contamination was significantly lower than that of other groups (P<0.05). Conclusion: Microleakage of the conventional fissure sealant is less than that of self-adhesive fissure sealant and self-adhesive composite, irrespective of saliva contamination.

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Viability of autogenous bone grafts obtained by using bone collectors: histological and microbiological study

Pesquisa Odontológica Brasileira ◽

10.1590/s1517-74912003000300007 ◽

2003 ◽

Vol 17 (3) ◽

pp. 234-240 ◽

Cited By ~ 17

Author(s):

Alberto Blay ◽

Samy Tunchel ◽

Wilson Roberto Sendyk

Keyword(s):

Culture Media ◽

Bone Grafts ◽

Autogenous Bone ◽

Mannitol Salt Agar ◽

The Sixties ◽

Growth Evaluation ◽

Implant Dentistry ◽

Saliva Contamination ◽

Small Bone ◽

Autogenous Bone Grafts

The use of autogenous bone grafts is considered to be the best choice for reconstructive surgery. In the periodontal literature, the utilization of osseous coagulum was suggested by the end of the sixties. The purpose of this study is to consider the use of bone collectors (bone traps) as an alternative method for obtaining material to fill small bone imperfections, such as fenestrations and dehiscences. Thirty samples were obtained from bone drilling during fixture installation in patients (13 men and 17 women, with an average age of 54 years) requiring treatment at the Department of Periodontology and Implant Dentistry, University of Santo Amaro. These samples were fixed in 10% neutral formaldehyde for 24 hours and subjected to histological preparation, in order to evaluate the presence of viable osteoblasts. In addition, the material was placed in a fluid thioglycolate medium and incubated for 24 hours at 36 ± 1°C in aerobiosis and anaerobiosis. Bacterial growth evaluation was made by using six different culture media (MacConkey agar, blood agar base, mannitol salt agar, Anaerokit LTD medium, Anaerokit LTD - bile medium, Anaerinsol). The results show that, if proper care is taken to prevent saliva contamination during the surgical procedure, this method of collecting autogenous bone may be useful in situations where small amounts of bone are required.

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