bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Water Storage on Bond Strength of Self-etching Adhesives to Dentin
Authors: Garcia Rubens Nazareno , de Goes Mario Fernando , Giannini Marcelo 
Published: July 2019

Abstract

Aim
The objective of this study was to evaluate the bond strength of self-etching adhesive systems one week and one year after storage in water.

Methods and Materials
Fragments from the buccal surfaces of 45 bovine teeth were prepared (12 mm in length X 5 mm in width X 1.0 mm in thickness). Dentin surfaces were wet-abraded with 600-grit SiC paper to create a standardized smear layer. Samples were randomly assigned to 18 experimental groups (n=5), according to nine adhesive systems tested (Single Bond; Adper Prompt L-Pop; iBond; One-Up Bond F; Xeno III; Clearfil SE Bond; Optibond Solo Plus SE; Tyrian SPE/One-Step Plus; and UniFil Bond) and two waterstorage times (one week and one year). Adhesives were applied according to the manufacturers’ instructions. Z250 composite was applied into the molds to fill up the internal diameter volume of a Tygon tubing mold (1.0 mm high / 0.7 mm internal diameter). Micro-shear bond strengths were determined using an apparatus attached to an Instron Universal Testing Machine (0.5 mm/min). Data were statistically analyzed using a twoway analysis of variance (ANOVA) and the Tukey's test (5%).

Results
One year after water storage the dentin bond strength of all adhesive systems reduced significantly, except for One-Up Bond F.

Conclusion
Water-storage time decreased the bond strength for most dentin bonding agents tested.

Citation
Garcia RN, de Goes MF, Giannini M. Effect of Water Storage on Bond Strength of Self-etching Adhesives to Dentin. J Contemp Dent Pract 2007 November; (8)7:046-053.
Scanning Electron Microscope Assessment of Several Resharpening Techniques on the Cutting Edges of Gracey Curettes
Authors: Sampaio José Eduardo Cezar , Acevedo Roberto Antonio Andrade , Shibli Jamil A. 
Published: July 2019

Abstract

Aim
Treatment of periodontal diseases is based on efficient scaling and root planing (SRP) and adequate maintenance of the patient. The effectiveness of SRP is influenced by operator skill, access to the subgingival area, root anatomy, and the quality and type of instrument used for SRP. The aim of this study was to evaluate the cutting edges of Gracey curettes after manufacturing and after resharpening using several techniques.

Methods and Material
The cutting edges of a total of 41 new #5-6 stainless steel Gracey curettes were evaluated blindly using scanning electron microscopy (SEM). The quality of the cutting edges was evaluated blindly by a calibrated examiner using micrographs. Data were analyzed using a Kruskal Wallis test and nonparametric two-way multiple comparisons.

Results and Conclusions
Different sharpening techniques had significantly different effects on the sharpeness of cutting edges (p<0.05). Sharpening by passing the lateral face of curettes over a sharpening stone and then a #299 Arkansas stone produced a high frequency of smooth, sharp edges or slightly irregular edges between the lateral and coronal faces of the curettes. Sharpening by passing a blunt stone over the curette's lateral face produced the poorest quality cutting edge (a bevel). Sharpening of the coronal curette face produced extremely irregular cutting edges and non-functional wire edges. Sharpening with rotary devices produced extremely irregular cutting edges.

Citation
Andrade Acevedo RA, Sampaio JEC, Shibli JA. Scanning Electron Microscope Assessment of Several Resharpening Techniques on the Cutting Edges of Gracey Curettes. J Contemp Dent Pract 2007 November; (8)7:070-077.
Triad of Bilateral Duplicated Permanent Teeth, Persistent Open Apex, and Tooth Malformation: A Case Report
Authors: Farahani Ramin Mostofi Zadeh , Zonuz Ali Taghavi 
Published: July 2019

Abstract

Aim
The aim of this article is to report a case of bilateral multiple impacted supernumerary teeth. A discussion of possible mechanisms of development is also presented along with a concise review of the literature.

Background
Supernumerary teeth occur in the context of various scenarios in the primary and the permanent dentition. Multiple supernumerary teeth are a rare finding especially in the absence of associated syndrome or disease.

Report
A case of bilateral multiple impacted supernumerary teeth localized to the mandibular premolar region is reported. Some of the supernumerary teeth as well as the erupted premolars had persistent open apices. Coronal malformation of the right maxillary first premolar was another interesting finding. There was an absence of any concomitant disease.

Summary
The aforementioned combination of findings has not been reported previously. The anatomical, geometrical, and spatial relationships of supernumerary teeth with their erupted equivalents may shed light on some controversial aspects of the etiology.

Citation
Farahani RMZ, Zonuz AT. Triad of Bilateral Duplicated Permanent Teeth, Persistent Open Apex, and Tooth Malformation: A Case Report. J Contemp Dent Pract 2007 November; (8)7:094-100.
Developing Lifetime Relationships with Patients: Strategies to Improve Patient Care and Build Your Practice
Authors: Levin Roger P. 
Published: July 2019

Abstract

Aim
The purpose of this article is to describe three strategies to build a thriving, patient-centered practice and promote oral health throughout a patient's lifetime.

Background
Compared to previous decades, more dental patients are “shopping around” for dental care and changing dental practices. This trend is due to factors such as acceptance of dental insurance, more comprehensive service offerings by other dentists, and effective marketing campaigns by other dental offices.

Findings
Delivering customer service exceeding patient expectations (“WOW” service), advocating patient education, and developing customized home care regimens will help lead to long-term patient retention and promote optimal patient care.

Discussion
A dental team making relationship-building a priority conveys respect for their patients’ time and well-being. Once trust has been established patients are more likely to be receptive to oral health education and become more compliant with home care regimens. Since a patient's oral health status will likely change over time, it's important to make education and customized treatment planning an integral part of each visit.

Conclusions
By demonstrating a strong commitment to customer service, education, and home care, patients recognize the care providers in a dental practice are interested in their well-being rather than simply treating problems.

Clinical Significance
If patients recognize a dental practice is focused on prevention and at-home oral health care, they are more likely to partner with that practice for a lifetime of excellent oral health care.

Keywords
Patient-centered practice, comprehensive service, patient education

Citation
Levin RP. Developing Lifetime Relationships with Patients: Strategies to Improve Patient Care and Build Your Practice. J Contemp Dent Pract 2008 January; (9)1:105-112.
Short-term Clinical Evaluation of Four Desensitizing Agents
Authors: Oginni Adeleke O. , Olusile Adeyemi Oluniyi , Bamise Cornelius Tokunbo , Dosumu Oluwole O. 
Published: July 2019

Abstract

Aim
To evaluate the effectiveness of four topical desensitizing agents in providing short-term relief of dentin hypersensitivity.

Methods and Materials
One hundred sixteen hypersensitive teeth with a positive response to intraoral testing for dentin hypersensitivity were included in this study. The four desensitizing agents tested were Duraphat™, 2% fluoride iontophoresis, copal varnish (CV), and Gluma™ Comfort Bond Plus Desensitizer. Following a specific regimen randomly determined desensitizing agents were applied in an alternating order when patients presented in a clinical setting with a complaint of hypersensitive teeth. A visual analogue scale was used to determine the degrees of hypersensitivity at three points in time. The first being just before the treatment to establish a baseline, then at 24 hours post-treatment, and the last at seven days post-treatment. Differences in the mean pain scores (MPS) between the baseline and post-treatment evaluation periods were used to determine the reduction in dentin hypersensitivity.

Results
At baseline the MPS for teeth treated with CV was 5.34 (SD: 2.39), Duraphat™ was 4.66 (SD: 1.82), Gluma™ was 6.03 (SD: 2.37), and iontophoresis was 5.76 (SD: 1.37). At 24 hours post-treatment the MPS for CV was 2.1 (SD: 0.95), Duraphat™ was 1.38 (SD;1.86), Gluma™ was 0.79 (SD;1.45), and iontophoresis was 1.62 (SD1.97). The reduction in dentin hypersensitivity at 24 hours (difference between baseline MPS and 24 hour MPS) was 5.28 for Gluma™, 4.14 for iontophoresis, 3.28 for Duraphat™, and 3.24 for CV which were all statistically significant (p<0.05). At seven days, the MPS for CV was 1.55 (SD: 1.44), Duraphat™ was 1.0 (SD;1.89), Gluma™ was 0.10 (SD;0.44), and iontophoresis was 0.3 (SD;0.98). Reduction of hypersensitivity between 24 hours and one week was 1.32 for iontophoresis, 0.69 for Gluma™, 0.55 for CV, and 0.38 for Duraphat™. Only the reductions for iontophoresis and Gluma™ were statistically significant at seven days (p<0.05).

Conclusions
All agents caused a statistically significant reduction in dentin hypersensitivity within 24 hours of treatment. Gluma™ performed best at 24 hours while iontophoresis appeared to have an edge at seven days. Long-term studies are needed to determine why this difference exists. Dentin hypersensitivity presents as an emergency condition requiring an effective means of providing immediate relief in the clinician's treatment armamentarium.

Citation
Olusile AO, Bamise CT, Oginni AO, Dosumu OO. Short-term Clinical Evaluation of Four Desensitizing Agents. J Contemp Dent Pract 2008 January; (9)1:022-029.
Finishing Systems on the Final Surface Roughness of Composites
Authors: Koh Richard , Neiva Gisele , Dennison Joseph , Yaman Peter 
Published: July 2019

Abstract

Aim
This study evaluated differences in surface roughness of a microhybrid (Gradia™ Direct, GC America) and a nanofil (Filtek™ Supreme, 3M™ ESPE™) composite using four polishing systems: PoGo™/Enhance® (DENTSPLY/Caulk), Sof-Lex™ (3MTM ESPE™), Astropol® (Ivoclar Vivadent), and Optidisc™ (KerrHawe).

Methods and Materials
An aluminum mold was used to prepare 2 X 60 composite disks (10 mm X 2 mm). Composite was packed into the mold, placed between two glass slabs, and polymerized for 40 seconds from the top and bottom surfaces. Specimens were finished to a standard rough surface using Moore's disks with six brushing strokes. Specimens were rinsed and stored in artificial saliva in individual plastic bags at 36°C for 24 hours prior to testing. Specimens were randomly assigned to one of the four polishing systems and were polished for 30 seconds (10 seconds per grit) with brushing strokes according to the manufacturer's instructions. Mean surface roughness (Ra) was recorded with a surface-analyzer 24 hours after storage in artificial saliva, both before and after polishing. Means were analyzed using two-way and one-way analysis of variance (ANOVA) and Tukey multiple comparison tests at p < 0.05.

Results
There was a statistically significant difference for baseline measures between Filtek™ and Gradia™ (p=0.0338). For Filtek™, Sof-Lex™ provided a significantly smoother surface (Ra=0.80 ± 0.21) than Optidisc™ (Ra=0.93 ± 0.28), Astropol® (Ra=1.15 ± 0.24), and Pogo™/Enhance® (Ra=1.39 ± 0.39). For Gradia, Sof-Lex™ provided a significantly smoother surface (Ra=0.47 ± 0.09) and Astropol® provided a significantly rougher surface (Ra=1.39 ± 0.19) than Pogo™/Enhance® (Ra=1.11 ± 0.20) and Optidisc™ (Ra=1.15 ± 0.18). There was no significant difference in roughness between composites for individual polishing systems (p=0.3991).

Conclusion
Filtek™ specimens were smoother than Gradia™ specimens after baseline roughening. Sof- Lex™ provided the smoothest final surface when used with either composite. Astropol® provided a rough surface for Gradia™ specimens.

Citation
Koh R, Neiva G, Dennison J, Yaman P. Finishing Systems on the Final Surface Roughness of Composites. J Contemp Dent Pract 2008 February;(9)2:138-145.
Effect of Luting Cements on the Compressive Strength of Turkom-Cera™ All-ceramic Copings
Authors: AL-Makramani Bandar M. A. , Razak Abdul A. A , Abu-Hassan Mohamed I. 
Published: July 2019

AbstractAimThe objective of this study is to investigate the effect of different luting agents on the fracture strength of Turkom-Cera™ all-ceramic copings.Methods and MaterialsStandardized metal dies were duplicated from a prepared maxillary first premolar tooth using non-precious metal alloy (Wiron 99). Thirty Turkom-Cera™ copings of 0.6 mm thickness were then fabricated. Three types of luting agents were used: zinc phosphate cement (Elite™), glass-ionomer cement (Fuji I™), and a dual-cured composite resin cement (Panavia F™). Ten copings were cemented with each type. All copings were cemented to their respective dies according to manufacturer's instructions and received a static load of 5 kg for ten minutes. After 24 hours of storage in distilled water at 37°C, the copings were vertically loaded until fracture using an Instron Universal Testing Machine at a crosshead speed of 1 mm/minute. The mode of fracture was then determined.ResultsStatistical analysis carried out using analysis of variance (ANOVA) revealed significant differences in the compressive strength between the three groups (P<0.001). The mean fracture strength (in Newtons) of Turkom-Cera™ copings cemented with Elite™, Fuji I™, and Panavia F™ were 1537.4 N, 1294.4 N, and 2183.6 N, respectively.ConclusionsLuting agents have an influence on the fracture resistance of Turkom-Cera™ copings.CitationAL-Makramani BMA, Razak AAA, Abu-Hassan MI. Effect of Luting Cements on the Compressive Strength of Turkom-Cera™ All-ceramic Copings. J Contemp Dent Pract 2008 February;(9)2:033-040.
The Effect of Different Light-Curing Methods on Temperature Changes of Dual Polymerizing Agents Cemented to Human Dentin
Authors: Taher Nadia Malek , Al-Khairallah Yousra , Al-Aujan Sheikha Hamed , Ad'dahash Maha 
Published: July 2019

Abstract

Aim
This in vitro study aims to measure the temperature changes of resin luting cements cemented to human dentin when using different light curing systems for photo-activitation.

Methods and Materials
The three different types of light-curing units (LCUs) used for photoactivation were quartz-tungsten halogen (QTH), light emitting diode (LED), and plasma arc (PAC). Two types of dual cure resin cements were used [Variolink II™ (VL) and Choice™ (CH)]. Feltik Z250™ composite resin material was used to prepare composite discs. Thirty human dentin specimens were prepared for each resin luting cement (ten for each light source). A total of 60 specimens were fabricated. Resin cement was applied on a dentin bridge and covered with the prepared composite disc where specimens were fabricated. Temperature change was recorded with a digital thermometer. Results: The lowest temperature was recorded when VL and CH were photo-activated with the PAC unit. The PAC unit produced significantly lower recorded temperatures than the LED and QTH units. No significant difference appeared between QTH and LED units in terms of recorded temperature.

Results
The lowest temperature was recorded when VL and CH were photo-activated with the PAC unit. The PAC unit produced significantly lower recorded temperatures than the LED and QTH units. No significant difference appeared between QTH and LED units in terms of recorded temperature.

Conclusion
The PAC unit produced significantly lower temperature changes compared to QTH and LED curing units. The risk for temperature rise should be taken into consideration during photo-polymerization of adhesive resins with LED or QTH in deep cavities when dentin thickness is 0.5 mm.

Citation
Taher NM, Al-Khairallah Y, Al-Aujan SH, Ad'dahash M. The Effect of Different Light-Curing Methods on Temperature Changes of Dual Polymerizing Agents Cemented to Human Dentin. J Contemp Dent Pract 2008 February;(9)2:057-064.
Sorption and Solubility of Composites Cured with Quartz-tungsten Halogen and Light Emitting Diode Light-curing Units
Authors: Archegas Luci Regina P. , Caldas Danilo B. M. , Rached Rodrigo N. , Vieira Sergio , Souza Evelise M. 
Published: July 2019

Abstract

Aim
The objective of this study was to evaluate the effect of light polymerization on water sorption and solubility of hybrid composites.

Methods and Materials
Three composite resins were used to make discs cured with either quartz-tungsten halogen (QTH) or light emitting diode (LED) curing units. The specimens were stored in a desiccator at 37°C and weighted to a constant mass, then immersed in deionized water for different periods of time, and reconditioned until achieving a constant mass. Sorption and solubility were calculated and subjected to analysis of variance (ANOVA) and Tukey tests (p<0.01).

Results
There were no statistically significant differences between the light sources. Water sorption increased with storage time for all the composites. The lowest sorption was observed for Herculite XRV™, followed by Tetric Ceram™, and Filtek Z250™. Increased storage times reduced the solubility of Filtek Z250™ but did not affect the solubility of Herculite XRV™ and Tetric Ceram™.

Conclusion
Water sorption and solubility of composites are not affected by the type of polymerization when the same intensity and exposure times are used. Thus, the differences found are probably related to the composition of the materials.

Clinical Significance
Water sorption and solubility of composites can lead to a shortened service life. However, these properties are not correlated to the type of polymerization.

Citation
Archegas LRP, Caldas DBM, Rached RN, Vieira S, Souza EM. Sorption and Solubility of Composites Cured with Quartz-tungsten Halogen and Light Emitting Diode Light-curing Units. J Contemp Dent Pract 2008 February;(9)2:073-080.
Treatment of a Patient with Oligodontia: A Case Report
Authors: Akkaya Nursel , Kiremitçi Arlin , Kansu Ŏzden 
Published: July 2019

Abstract

Aim
The aim of this report is to describe the management of a 16-year-old patient with oligodontia including six permanent teeth.

Background
Oligodontia is agenesis of six teeth or more, excluding third molars. The etiology of congenital absence of teeth is believed to be involved in heredity or developmental anomalies. It can be isolated or as part of a syndrome. There are a number of options available to restore space generated by missing teeth. Dental treatment can vary depending on the severity of the disease and generally requires a multidisciplinary approach. Treatment options include orthodontic therapy, implants, adhesive techniques, and removable prostheses.

Report
A 16-year-old male patient with oligodontia affecting six permanent teeth received conservative care that met his and his parent's expectations. The existing primary teeth were restored to resemble permanent teeth in order to achieve a favorable esthetic result using direct composite resin. The restorative treatment was provided for the psychosocial comfort of the young patient. The loss of teeth in young patients can cause esthetic, functional, and psychological problems particularly if the teeth of the anterior region are involved.

Summary
Adhesive techniques and new restorative materials represent current options in the management of the dental rehabilitation of young patients with oligodontia.

Citation
Akkaya N, Kiremitçi A, Kansu Ö. Treatment of a Patient with Oligodontia: A Case Report. J Contemp Dent Pract 2008 March; (9)3:121-127.
Caries Prevalence, Severity, and Pattern in Preschool Children
Authors: Wyne Amjad H. 
Published: July 2019

Abstract

Aim
To determine caries prevalence, severity, and pattern in preschool children of Riyadh, Saudi Arabia.

Methods and Materials
A total of 789 randomly selected preschool children, 379 (48%) male and 410 (52%) female, with mean age of 4.7 (SD 0.5) years were examined for dental caries using World Health Organization (WHO) diagnostic criteria.

Results
The overall caries prevalence among the sample was 74.8%. The mean decayed, missing, and filled (dmft) score was 6.1 (SD 3.9) with a decay component of 4.66, a missing component of 0.54, and a filled component of 0.92. There was no significant difference (p>.05) in caries prevalence and severity in relation to gender of the children. However, the caries prevalence and severity were significantly higher (p<.05) among children from government preschools as compared to those from private preschools. Among the posterior teeth, mandibular second molars (54.3%), and among anterior teeth, maxillary central incisors (27.9%) had the highest caries prevalence. Among the molars, caries prevalence was generally high in lower molars while among the anterior teeth, upper teeth generally had a higher caries prevalence. The majority of the children (50.3%) had both posterior and anterior tooth caries, 42.2% had posterior tooth caries only, while very few (7.5%) children had only anterior tooth caries.

Conclusion
Caries prevalence and severity are very high in the study population, and most children have posterior tooth caries.

Clinical Significance
Early measures such as fissure sealants, topical fluoride applications (as early as safely possible), and dietary fluoride supplements (where indicated) are needed to prevent caries of deciduous molars in high caries populations.

Citation
Wyne AH. Caries Prevalence, Severity, and Pattern in Preschool Children. J Contemp Dent Pract 2008 March; (9)3:024-031.
Increase in Utilization of Dental Sealants
Authors: Lam Anty 
Published: July 2019

AbstractAimThe purpose of this review is to explore how to increase utilization of dental sealants to reach the national 50% sealant objective as stated in the Healthy People 2010 document.BackgroundDental decay is the most common chronic childhood disease. A simple, cost-effective preventive measure to manage this disease is through sealant application.ReviewAlthough dental sealants are effective in reducing the risk of having dental decay, their rate of utilization among children and adolescents is below the objective set forth by the Healthy People 2010 document. This is related to the lack of public awareness, patient education, and inadequate reimbursement for sealants served by third-party insurers.ConclusionDental decay is the most common chronic childhood disease. Dental sealants are a simple, costeffective preventive measure to manage this disease. In order to meet the national 50% sealant objective of the Healthy People 2010 document, public awareness and the education of consumers about the benefit of having dental sealants must be improved. Third-party insurers must improve the benefits for subscribers seeking dental sealant services. Using these approaches, the utilization of dental sealants will improve the oral health among the next generation of Americans.CitationLam A. Increase in Utilization of Dental Sealants. J Contemp Dent Pract 2008 March; (9)3:081-087.