Clinical Follow-up of a Fissure Sealant Placed Using Different Adhesive Protocols: A 24-month Split-mouth Study

2018 ◽  
Vol 43 (4) ◽  
pp. 362-371 ◽  
Author(s):  
AR Yazici ◽  
E Ozturk Bayazit ◽  
ZB Kutuk ◽  
G Ozgunaltay ◽  
E Ergin ◽  
...  
Keyword(s):  
Retention Rate ◽  
Group Iv ◽  
Retention Rates ◽  
Fissure Sealant ◽  
Group Iii ◽  
Group I ◽  
Etch And Rinse ◽  
Acid Etch ◽  
Self Etch

SUMMARY The purpose of this study was to evaluate the retention rates of a fissure sealant placed using different adhesive protocols over 24 months. Twenty-four subjects with no restorations or caries received fissure sealants (Clinpro Sealant, 3M ESPE) placed using different adhesive protocols. A total of 292 sealants were placed as follows by two previously calibrated dentists using a table of random numbers (n=73): group I, acid-etch/without adhesive; group II, with a self-etch adhesive (Adper Easy Bond, 3M ESPE); group III, with an etch-and-rinse adhesive (Adper Single Bond 2, 3M ESPE); group IV, with acid + self-etch adhesive (Adper Easy Bond). Two other calibrated examiners independently evaluated the sealants at baseline and at six-, 12-, 18-, and 24-month recalls. Each sealant was evaluated in terms of caries formation being present or absent and retention using the following criteria: 1 = total retention, 2 = partial loss, and 3 = total loss. Pearson's χ2 test was used to evaluate differences in retention rates among the sealants for each evaluation period. At the end of 24 months, total retention rates were 57.5%, 27.4%, 84.9%, and 76.7% in the acid-etch, self-etch adhesive, etch-and-rinse adhesive, and acid + self-etch adhesive groups, respectively. Although there were no statistically significant differences between the retention rates among the adhesive protocols at 6 months (p=0.684), significant differences were observed at the 12-, 18-, and 24-month evaluations. At 24 months, the lowest retention rates were observed in the self-etch group (p<0.05). No caries development was observed in any of the groups. The retention rate of sealants placed using self-etch adhesive was poor compared with the other groups.

scholarly journals Impact of Various Cross Linking Agents on Dentin Adhesive Systems - an In-vitro Study

2021 ◽  
pp. 86-92
Author(s):  
Ganapathi Vasavi Prasanna ◽  
Vemareddy Rajasekhar ◽  
Someshwar Battu ◽  
Korrai Balaraju ◽  
Seera Sudhakar Naidu ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Group Iv ◽  
Bonding Agent ◽  
Sodium Ascorbate ◽  
Cross Linking ◽  
Group Iii ◽  
Group I ◽  
Self Etch

Aims and Objectives: The main aim of this study is to compare and evaluate the shear bond strength of composite resin using a total etch adhesive and self-etch adhesive after treatment with different collagen cross-linking agents. Materials and Methods: Forty freshly extracted human maxillary central incisors were taken. The proximal dentin was exposed, cavities were prepared on mesial and distal of each tooth. The specimens were randomly divided into two groups based on bonding agent applied-Group A and Group B i.e universal bonding agent and all in one bonding agent respectively and are subdivided into four groups based on the surface treatment of dentin. Group I A (n=10) Control-total etch(CTE); Group II A (n=10) Sodium Ascorbate-total etch (STE); Group III A (n=10)- Proanthocyanidin total etch(PTE); Group IV A (n=10)- Chitosan total etch (CHTE); Group I B (n=10) Control-self etch (CSE); Group II B (n=10) Sodium Ascorbate-self etch(SSE); Group III B (n=10)- Proanthocyanidin self-etch (PSE); and Group IV B (n=10) - Chitosan self-etch (CHSE). Shear bond strength of the specimens are tested with universal testing machine, and the data was statistically analysed with one way ANOVA. Results: Significantly higher shear bond strength to dentin was observed in teeth treated with 6.5% Proanthocyanidin Total etch, 10% Sodium Ascorbate Total etch and 1% Chitosan acetate compared to the control group. No significant difference was seen with self-etch treated groups. Conclusion: Dentin surface pretreatment with 6.5% Proanthocyanidin, 10% Sodium Ascorbate and 1% Chitosan acetate results in significant enhancement in bond strength of composite resin to deep dentin.

scholarly journals A 48-month Clinical Evaluation of Fissure Sealants Placed With Different Adhesive Systems

2013 ◽  
Vol 38 (4) ◽  
pp. 369-375 ◽  
Author(s):  
E Karaman ◽  
AR Yazici ◽  
D Tuncer ◽  
E Firat ◽  
S Unluer ◽  
...  
Keyword(s):  
Retention Rates ◽  
Adhesive Systems ◽  
Fissure Sealants ◽  
Evaluation Period ◽  
Fissure Sealant ◽  
Etch And Rinse ◽  
Significant Difference ◽  
One Step ◽  
Adhesive Application ◽  
Self Etch

SUMMARYAimTo compare the retention rates of a nanofilled occlusal fissure sealant placed with the use of an etch-and-rinse or a self-etch adhesive over 48 months.Materials and MethodsThe authors enrolled 244 teeth, each with no restoration or sealant and no detectable caries, from 16 patients. The sealants were placed with Solobond M two-step etch-and-rinse adhesive or Futurabond NR one-step self-etch adhesive by four previously calibrated dentists using a table of random numbers. After completion of the adhesive application, a nanofilled sealant, Grandio Seal, was applied and light-cured. Two other calibrated examiners, who were unaware of which adhesive had been used, independently evaluated the sealants at baseline and at 12-, 24-, 36-, and 48-month recalls. Each sealant was evaluated in terms of caries formation being present or absent and retention using the following criteria: 1 = completely retained, 2 = partial loss, and 3 = total loss. The Pearson χ2 test was used to evaluate differences in retention rates among the sealants used with different adhesives for each evaluation period.ResultsThe retention rates for sealants in the Solobond M group were significantly higher than those in the Futurabond NR group in all periods of evaluation (p<0.05). No statistically significant difference between the retention rates for premolars and molars was found at each evaluation period (p>0.05). There was no new caries formation throughout the 48-month recall period.ConclusionFissure sealants placed with etch-and-rinse adhesive showed better retention rates than those placed with self-etch adhesive.

scholarly journals Signal-averaged electrocardiogram in chronic Chagas' heart disease

1995 ◽  
Vol 113 (2) ◽  
pp. 851-857 ◽  
Author(s):  
Aguinaldo Pereira de Moraes ◽  
Paulo Jorge Moffa ◽  
Eduardo A. Sosa ◽  
Giovanni M. V. Bellotti ◽  
Carlos A. Pastore ◽  
...  
Keyword(s):  
Heart Disease ◽  
Time Domain Analysis ◽  
Group Iv ◽  
Root Mean Square Amplitude ◽  
Group Iii ◽  
Group I ◽  
Chagas Heart Disease ◽  
Group Ii ◽  
The Relationship

The aim of the study was to register the prevalence of late potentials (LP) in patients with chronic Chagas' heart disease (CCD) and the relationship with sustained ventricular tachycardia (SVT). 192 patients (96 males), mean age 42.9 years, with CCD were studied through a Signal Averaged ECG using time domain analysis. According to presence or absence of bundle branch block (BBB) and SVT, four groups of patients were created: Group I (n = 72): without SVT (VT-) and without BBB (BBB-): Group II (n = 27): with SVT (VT+) and BBB-; Group III (n = 63): VT- and with BBB (BBB+); and Group IV (N = 30): VT+ and BBB+. The LP was admitted, with 40 Hz filter, in the groups without BBB using standard criteria of the method. In the group with BBB, the root-mean-square amplitude of the last 40 ms (RMS) < =14µV was considered as an indicator of LP. RESULTS: In groups I and II, LP was present in 21 (78%) of the patients with SVT and in 22 (31%) of the patients without SVT (p < 0.001), with Sensitivity (S) 78%; Specificity (SP) 70% and Accuracy (Ac) 72%. LP was present in 30 (48%) of the patients without and 20 (67%) of the patients with SVT, in groups III and IV. p = 0.066, with S = 66%; SP = 52%; and Ac = 57%. In the follow-up, there were 4 deaths unrelated to arrhythmic events, all of them did not have LP. Eight (29,6%) of the patients from group II and 4 (13%) from group IV presented recurrence of SVT and 91,6% of these patients had LP. CONCLUSIONS: LP occurred in 77.7% of the patients with SVT and without BBB. In the groups with BBB, there was association of LP with SVT in 66,6% of the cases. The recurrence of SVT was present in 21% of the cases from which 91,6% had LP.

A Clinical Evaluation of Deproteinization and Different Cavity Designs on Resin Restoration Performance in MIH-Affected Molars: Two-Year Results

2017 ◽  
Vol 41 (5) ◽  
pp. 336-342 ◽  
Author(s):  
Hayriye Sönmez ◽  
Sinem Saat
Keyword(s):  
Group Iv ◽  
Retention Rates ◽  
Control Group ◽  
Clinical Effects ◽  
Success Rates ◽  
Group Iii ◽  
Group I ◽  
Molar Incisor Hypomineralization ◽  
Significant Difference ◽  
Group Ii

Background: The aim of this study was to evaluate the clinical effects of deproteinization of the hypomineralized enamel and different cavity designs on the performance of the composite resin restorations(CRRs) placed into the cavities of MIH (molar incisor hypomineralization)-affected molars. Study design: 95 MIH-affected permanent first molars (PFMs) and 31 caries but not MIH-affected PFMs (126 teeth in total) were included in the study. The MIH-affected molars were divided into three groups. In Group I, all hypomineralized tissue was removed until healthy enamel was reached. In Group II, carious and cheesy hypomineralized tissue was removed until a reasonable resistance was detected in the hypomineralized tissue. In Group III, cavities designed as Group II, differently from this group deproteinization of the left hypomineralized tissue was performed prior to the placement of CRRs. Group IV served as the control group consisting of unaffected carious PFMs. Restorations were evaluated according to modified USPHS criteria for 24 months. Results: The retention rates were 93.7% for Group I, 80.7% for Group II, 93.5% for Group III and 100% for Group IV. The success rate for the restorations in Group II proved significantly lower (p&lt;0.05) than that of the other three groups. No significant difference in success rates was observed between Group I, Group III and Group IV (p&gt;0.05) at the end of 24 months. Conclusions: Failure of the restorations was predominant in the group that the hypomineralized tissue was left surrounding the cavities. Deproteinization of the hypomineralized enamel was found to enhance the retention rates of CRRs.

scholarly journals Analysis of the length of fixation during hemivertebra resection. A monocentric cohort

2020 ◽  
Author(s):  
Sergey O Ryabykh ◽  
Egor Yu Filatov ◽  
Joseph Olorunsogo Mejabi ◽  
Dmitry M Savin ◽  
Alexander B Gubin
Keyword(s):  
Blood Loss ◽  
Cobb Angle ◽  
Spinal Deformity ◽  
Operating Time ◽  
Group Iv ◽  
Group Iii ◽  
Fixation Group ◽  
Group I ◽  
Segmental Fixation

Abstract Background: We aimed at reviewing results of surgical correction of spinal deformity due to hemivertebra with regard to length of instrumentation. Methods: Study comprised 117 patients with congenital spinal deformity treated between 2010 and 2018. Patients’ aged 1 to 18 years. Mean follow-up was 3 years (1 to 8). Posterior approach was used in all cases. Patients were subdivided into 4 groups. Result: Unilateral monosegmental fixation (Group I) for 15 children with mean age of 48.3 months. Cobb angle for scoliosis and kyphosis were 31.1 0 + 6.4 0 and 29.3° + 11.9 0 corrected to 7.8 0 + 6.8 0 and 4.7 0 + 4.0 0 respectively. Blood loss was 213.6 mL. Operating time was 165 minutes. Bilateral monosegmental fixation (Group II) for 24 patients with mean age of 53.1 months. Cobb angle for scoliosis and kyphosis were 32.5° + 8.6 0 and 30.9° + 4.3 0 corrected to 5.3 0 + 2.8 0 and 0.2 0 + 11.6 0 respectively. Blood loss was 215.4 mL. Operating time was 160.5 minutes. Bilateral three-segmental fixation (Group III) for 29 patients with mean age of 78.2 months. Cobb angle for scoliosis and kyphosis were 36.6° + 10.6 0 and 37.6° + 14.6 0 corrected to 6.2 0 + 6.1 0 and 5.0 0 + 5.2 0 respectively. Blood loss was 342.7 mL. Operating time was 197.0 minutes. Bilateral polysegmental fixation (Group IV) for 49 children with mean age of 112.7 months. Cobb angle for scoliosis and kyphosis were 40.2° + 14.8 0 and 58.2° + 35.6 0 corrected to 10.7 0 + 9.6 0 and 10.7 0 + 10.3 0 respectively. Blood loss was 549.3 mL. Operating time was 288.8 minutes. Conclusion: Choice of spinal fixation technique and the length of fixation were determined on the basis of patient’s age, magnitude of the deformity and concomitant vertebral abnormalities.

scholarly journals Analysis of the length of fixation during hemivertebra resection. A monocentric retrospective cohort

2020 ◽  
Author(s):  
Sergey O Ryabykh ◽  
Egor Yu Filatov ◽  
Joseph Olorunsogo Mejabi ◽  
Dmitry M Savin ◽  
Alexander B Gubin
Keyword(s):  
Blood Loss ◽  
Cobb Angle ◽  
Spinal Deformity ◽  
Operating Time ◽  
Group Iv ◽  
Group Iii ◽  
Fixation Group ◽  
Group I ◽  
Segmental Fixation

Abstract Background: We aimed at reviewing results of surgical correction of spinal deformity due to hemivertebra with regard to the age, severity of deformity and length of instrumentation.Methods. Study comprised 117 patients with congenital spinal deformity treated between 2010 and 2018. Patients’ aged 1 to 18 years. Mean follow-up was 3 years (1 to 8). Posterior approach was used in all cases. Patients were subdivided into 4 groups.Result:Unilateral mono-segmental fixation (Group I) for 15 children with mean age of 48.3 months. Cobb angle for scoliosis and kyphosis were 31.10 + 6.40 and 29.3° + 11.90 corrected to 7.80 + 6.80 and 4.70 + 4.00 respectively. Blood loss was 213.6 mL. Operating time was 165 minutes.Bilateral mono-segmental fixation (Group II) for 24 patients with mean age of 53.1 months. Cobb angle for scoliosis and kyphosis were 32.5° + 8.60 and 30.9° + 4.30 corrected to 5.30 + 2.80 and 0.20 + 11.60 respectively. Blood loss was 215.4 mL. Operating time was 160.5 minutes.Bilateral three-segmental fixation (Group III) for 29 patients with mean age of 78.2 months. Cobb angle for scoliosis and kyphosis were 36.6° + 10.60 and 37.6° + 14.60 corrected to 6.20 + 6.10 and 5.00 + 5.20 respectively. Blood loss was 342.7 mL. Operating time was 197.0 minutes.Bilateral poly-segmental fixation (Group IV) for 49 children with mean age of 112.7 months. Cobb angle for scoliosis and kyphosis were 40.2° + 14.80 and 58.2° + 35.60 corrected to 10.70 + 9.60 and 10.70 + 10.30 respectively. Blood loss was 549.3 mL. Operating time was 288.8 minutes.Conclusion: Choice of spinal fixation technique and the length of fixation were determined on the basis of patient’s age, magnitude of the deformity and concomitant vertebral abnormalities.

scholarly journals The effect of cavity disinfectants on the micro-shear bond strength of dentin adhesives

2014 ◽  
Vol 08 (02) ◽  
pp. 184-190 ◽  
Author(s):  
Dina Wafik Elkassas ◽  
Elham Mostafa Fawzi ◽  
Ahmed El Zohairy
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Group Iv ◽  
Single Bond ◽  
Group V ◽  
Group Iii ◽  
Modes Of Failure ◽  
Group I ◽  
Etch And Rinse ◽  
Group Ii

ABSTRACT Objectives: This study was carried out to examine the effect of application of four different disinfecting agents on the micro-shear bond strength (μ-SBS) of an etch-and-rinse and self-etch adhesive systems. Materials and Methods: One hundred flat dentin surfaces of human molars were produced by wet grinding the buccal surfaces. Specimens were randomly assigned to five groups according to the disinfectant used: Group I: Control (no disinfectant); Group II: 5.25% sodium hypochlorite based; Group III: 2% chlorhexidine based (Consepsis), Group IV: 0.1% benzalkoniumchloride based (Tubulicid red) and Group V: 3% doxycycline based (Biopure, MTAD). Specimens were bonded using either Adper Single Bond 2 or Clearfil S3 Bond, which were employed according to the manufacturer's instructions. Resin composite microcylinders were bonded using Tygon® tubes for μ-SBS testing. The modes of failure were noted after visual examination using a binocular stereomicroscope at ×25 magnification. Failures were classified as adhesive, or mixed. μ-SBS results were analyzed using two-way ANOVA followed by Tukey's post-hoc test. Results: Dentin disinfectants tested significantly negated the bonding of Adper Single bond 2 and the groups were ranked; Group I > Group V = Group IV > Group II = Group III, meanwhile they enhanced significantly the μ-SBS values upon using Clearfil S3 Bond and were ranked; Group II > Group III = Group IV = Group V > Group I. Most failures were adhesive with the Adper single bond adhesive system. Mixed modes of failure were evident with Clearfil S3 bond. Conclusions: The disinfectants tested should not be used with Adper Single Bond 2 when applied before the etching step, However they could be used safely prior to bonding with Clearfil S3 Bond.

scholarly journals Comparison of Surgical Outcomes with Time Interval of Operation among extradural haematoma (EDH) Patients

2018 ◽  
Vol 4 (1) ◽  
pp. 33-39
Author(s):  
MM Ehsanul Haque ◽  
Shamima Sultana ◽  
Md Saiful Alam ◽  
Wahida Begum ◽  
Syeda Asfiya Ara
Keyword(s):  
Surgical Intervention ◽  
Group Iv ◽  
Time Interval ◽  
Extradural Haematoma ◽  
Group Iii ◽  
Medical College ◽  
Group I ◽  
Study Population ◽  
Death Cases

Background: Post-operative outcome of extradural haematoma (EDH) patients depends on the time interval of operation.Objectives: The purpose of the present study was to evaluate the role of time interval and surgical intervention in EDH.Methodology: This interventional study was carried out in the Department of Neurosurgery at Dhaka Medical College and Hospital, Dhaka, Bangladesh from July 2001 to July 2003 for a period of two (02) years. Patients with the history of head trauma admitted in Neurosurgery unit of Dhaka Medical College and Hospital which were being diagnosed as EDH both clinically and radiologically were included as study population. All patients were treated surgically and haematoma was evacuated. Outcome regarding neurological status, functional recovery, associated morbidity and mortality were assessed in each case as per Glasgow Outcome Scale and was compared between the two groups of patients who were treated surgically within 3rd day and 4th to 7th day after infliction of injury. The study population was devided into 4 groups on the basis of the consciousness level on admission of the patients. The EDH patietns who had GCS <5, 5 to 8, 9 to 12 and 13 to 15 were categorized as group I, II, III and IV respectively. On the basis of pre operative time interval, surgical intervention was done within 3 days of injury and from 4th to 7th day of injury. Craniotomy and craniectomy were done depending on patient’s condition and situation of haematoma.Result: A total 63 patients were included. During admission out of 63 patients majority of the patients were in the group III which was 29(46%) cases. During pre-operqative period out of 63 patients majority of the patients were in the group III which was 30(47.6%) cases. Out of 63 cases a total number of 40 cases were performed the surgery within 72 hours and the rest 23 patients were from 4th day to 7th day of injury. In group I at 8th POD, 3 death cases were recorded at 3rd day operation group and 2 cases at 4th to 7th cases. In group IV at 8th POD follow up good recovery was reported in 6 cases at 3rd day and 3 cases at 4th to 7th day. In group I after 1 month, 3 death cases were recorded at 3rd day operation group and 2 cases at 4th to 7th cases. In group IV after 1 month follow up good recovery was reported in 6 cases at 3rd day and 3 cases at 4th to 7th day; however, moderate disability was reported in 2 cases at 4th to 7th day.Conclusion: In conclusion mortality rate is reduced in patients with EDH who are treated in the earliest possible time after head injuryJournal of National Institute of Neurosciences Bangladesh, 2018;4(1): 33-39

Diagnosis and management of pediatric brain-stem gliomas

1986 ◽  
Vol 65 (6) ◽  
pp. 745-750 ◽  
Author(s):  
Ann R. Stroink ◽  
Harold J. Hoffman ◽  
E. Bruce Hendrick ◽  
Robin P. Humphreys
Keyword(s):  
Brain Stem ◽  
Survival Time ◽  
Group Iv ◽  
Content Type ◽  
Group Iii ◽  
Mean Survival Time ◽  
Group I ◽  
Group Ii ◽  
The Brain

✓ The authors reviewed the cases of 49 children, ranging in age from 9 months to 15 years, who were diagnosed by computerized tomography (CT) as having brain-stem glioma. Four distinct groups of brain-stem gliomas were identified based on CT scan characteristics: Group I included isodense contrast-enhancing tumors that were dorsally exophytic into the fourth ventricle; Group II(a) included hypodense nonenhancing intrinsic tumors of the brain stem; Group II(b) included intrinsic tumors of the brain stem with hyperdense exophytic components extending ventrally and laterally into the cerebellopontine and prepontine cisterns; Group III included intrinsic cystic tumors with contrast-enhancing capsules; and Group IV included focally intrinsic tumors of the brain stem that were isodense and enhanced brightly on administration of contrast medium. The clinical presentation, efficacy of surgical intervention, pathology, and prognosis of these tumors were correlated within these groupings. Eleven patients had Group I tumors, all of which were surgically resected; 10 of the 11 lesions were proven to be low-grade gliomas. These patients had an excellent prognosis; 10 of the 11 survived, with a mean follow-up period of 4.5 years. There were 18 patients with Group II(a) tumors; although tumor biopsy was attempted on eight of these, pathological diagnosis at the time of surgery was made in only one case. These patients did poorly; the mean survival time was 6.2 months. The seven Group II(b) tumor patients demonstrated a similarly poor prognosis: all of them died within 23 months of diagnosis, with a mean survival time of 12 months. Only two of six patients undergoing biopsy had sufficient tissue for histological verification. Three of the four patients with Group III tumors died; their mean survival time was 11.5 months. Successful histological examination was carried out in all four cases. The nine Group IV tumor patients did reasonably well; seven of these patients remain alive, with a mean follow-up period of 2.3 years. Histological diagnosis was obtained in three of the seven patients who were explored in this group. This classification system has proven to be of value in determining prognosis and efficacy of surgical intervention.

scholarly journals Morphology of the Dentin–resin Interface yielded by Two-step Etch-and-rinse Adhesives with Different Solvents

2017 ◽  
Vol 18 (10) ◽  
pp. 947-958 ◽  
Author(s):  
Joao Cardoso Ferreira ◽  
Patrícia T Pires ◽  
Álvaro F de Azevedo ◽  
Sofia Arantes-Oliveira ◽  
Mário J Silva ◽  
...  
Keyword(s):  
Bond Strength ◽  
Adhesive Layer ◽  
Group Iv ◽  
Adhesive Systems ◽  
Hybrid Layer ◽  
Group Iii ◽  
Group I ◽  
Tertiary Butanol ◽  
Etch And Rinse ◽  
Group Ii

ABSTRACT Aim The study aimed to analyze the morphology of the dentin–resin interface yielded by two-step etch-and-rinse adhesive systems with different solvents and compositions. Materials and methods A total of 32 dentine disks were prepared and randomly assigned to four groups of one-bottle etchand-rinse adhesive systems containing different solvents: group I, Adper Scotchbond-1XT™ (ethanol/water); group II, XP-Bond™ (tertiary butanol); group III, Prime and Bond NT® (acetone); and group IV, One Coat bond® (5% water). Adhesive systems were applied onto dentin disks, which were then thermal cycled, divided into two hemi-disks (n = 16), and prepared for field-emission scanning electron microscopy to examine the dentin–resin interdiffusion zone. Microphotographs were scanned and data were processed. Data were compared with analysis of variance multivariant test after Kolmogorov–Smirnov and Shapiro–Wilk tests using Statistic Package for the Social Sciences. Results The adhesive layer thickness average found was group I: 45.9 ± 13.41 μm, group II: 20.6 ± 16.32 μm, group III: 17.7 ± 11.75 μm, and group IV: 50.7 ± 27.81 μm. Significant differences were found between groups I and IV and groups II and III (p<0.000). Groups I (3.23 ± 0.53 μm) and II (3.13 ± 0.73 μm) yielded significantly thicker hybrid layers than groups III (2.53 ± 0.50 μm) and IV (1.84 ± 0.27 μm) (p<0.003). Group III presented a less homogeneous hybrid layer, with some gaps. Tag length average was greater in groups II (111.0 ± 36.92 μm) and IV (128.9 ± 78.38 μm) than in groups I (61.5 ± 18.10 μm) and III (68.6 ± 15.84 μm) (p<0.008). Conclusion Adhesives systems with different solvents led to significant differences in the dentin–resin interface morphology. Solvents role in adhesives bond strength should be considered together with the other adhesive system components. Clinical significance The adhesive containing tertiary butanol, in addition, seems to originate a good-quality hybrid layer and long, entangled tags and also appears to have greater ability to originate microtags, which may indicate higher bond strength. How to cite this article Ferreira JC, Pires PT, de Azevedo ÁF, Arantes-Oliveira S, Silva MJ, de Melo PR. Morphology of the Dentin–resin Interface yielded by Two-step Etch-and-rinse Adhesives with Different Solvents. J Contemp Dent Pract 2017;18(10):947-958.

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