Dimensional accuracy of three impression materials by one-step and two-step impression ...
Conclusion: Based on our finding, the accuracy of impression is affected by the impression materials. Identium (Vinyl siloxane ether) showed the most accuracy in the one-step and two-step impression techniques. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - January 27, 2020 Category: Dentistry Source Type: research

Exploring The Customized Fixtures for Evaluation of Three-point Bending Strength of Dental ...
Conclusion: The fixtures for TPBS test of RBCs are successfully designed and developed which will likely facilitate the researcher s with mechanical characterization of dental materials. A machine used for testing of large industrial materials other than small dimensional dental materials can now be used to test TPBS of RBCs according to ISO 4049 with the help of the invented economical fixtures. This will enhance the quality o f teaching and learning of materials science in developing countries. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - January 19, 2020 Category: Dentistry Source Type: research

Artifacts of Titanium, Zirconium and binary Titanium-Zirconium abutments in CT, CBCT, MRI
Aim: The aim of this in vitro study was to evaluate imaging artifacts induced by Titanium, Zirconium, Titanium-Zirconium abutments in CT, MRI and CBCT imaging modalities.Methods: A 4 ×8mm titanium fixture was inserted in a dry human mandible. Titanium, Zirconium and Titanium–Zirconium abutments measuring 10.5 mm in height are located on the fixture, one by one. Each abutment was scanned 4 times by each imaging modality. Gray value of the images was evaluated in four determine d regions adjacent to distal, mesial, buccal and lingual aspects of the implant as the region of interest (ROI) by two observers using im...
Source: Journal of Dental Materials and Techniques - January 18, 2020 Category: Dentistry Source Type: research

Mothers' Knowledge and Practice towards the effects of using iron supplements on tooth staining ...
This study aims to assess mother ’s knowledge and practice towards the effects of iron supplement use on dental caries and staining of 6 months to 2 year‑old children in Yazd, Iran.Methods and Material: A randomized cross-sectional study was conducted among 403 mother– child (between 6 monthsTo 2 years) pairs who referred to health service centres in Yazd in 2011. Using a questionnaire, we assessed mother's knowledge and practice, and categorized it as sufficient or insufficient. Chi-square test was used for statistical analysis.Results: Knowledge, and practice was sufficient in 241 (59.8%), and 273 (67.7%) m...
Source: Journal of Dental Materials and Techniques - January 18, 2020 Category: Dentistry Source Type: research

The Effect of Zinc Oxide-Eugenol Temporary Restorations on Bond Strength of a Composite Resin
Conclusions: ZO-E can be used for temporary fillings without affecting bond strength of subsequent composite restorations. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - January 17, 2020 Category: Dentistry Source Type: research

Invitro Cytotoxicity of Silver Nanoparticles Incorporated in a Soft Silicone Liner
Conclusion: Within the limitations of this study, the addition of 0.5, 1, 2 and 3 wt% concentrations of SNPs to Mucopren did not cause a significant change in its cell toxicity in an in vitro condition. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - January 17, 2020 Category: Dentistry Source Type: research

Effects of root canal irrigants and medicaments on dentin and vice versa: a review
Microorganisms are very important in the initiation and perpetuation of pulpal and periapical infections. Due to the complex anatomy of the root canal system, mechanical instrumentation of the root canal system should be supplemented with proper root canal irrigants and medicaments. It has been revealed that due to the interactions of root canal irrigants and medicaments with dentin and contents of the root canal system, the antimicrobial effect of root canal irrigants and medicaments in root canal system (ex vivo) are different from that in vitro. Furthermore, root canal irrigants may decrease the fracture resistance of d...
Source: Journal of Dental Materials and Techniques - January 14, 2020 Category: Dentistry Source Type: research

Exploration of the Customized Fixtures for the Evaluation of Three-point Bending Strength of ...
Conclusion: The fixtures for the TPBS test of RBCs were successfully designed and developed which would likely facilitate the researchers with a mechanical characterization of dental materials. A machine used for the testing of large industrial materials other than small dimensional dental materials can now be used to test TPBS of RBCs according to ISO 4049 with the help of the invented economical fixtures. This will enhance the quality of teaching and learning of materials science in developing countries. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Effects of N-Vinylcaprolactam Containing Polyacids and Zirconia on Mechanical Properties of ...
This study aimed to investigate the impact of N-vinylcaprolactam (NVC) and Nano-sized yttria-stabilized zirconia (YSZ), separately and simultaneously, on the mechanical properties of the commercial glass ionomer cements (GICs). Methods: The NVC is able to ameliorate the mechanical and surface properties of glass ionomers; however, its effect hasn’t been investigated in conjunction with zirconia yet. In order to perform the current research, the liquid of glass ionomer was synthesized by adding the NVC to its copolymer and then was characterized by proton nuclear magnetic resonance and Fourier transforms infrared. In ...
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Dimensional accuracy of three impression materials by one-step and two-step impression ...
Conclusion: As evidenced by the results, the accuracy of impression is affected by the impression materials. Moreover, Identium (Vinyl siloxane ether) demonstrated the most accuracy in both one-step and two-step impression techniques. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

In vitro Cytotoxicity of Silver Nanoparticles Incorporated in a Soft Silicone Liner
Conclusion: Within the limitations of this study, the addition of 0.5, 1, 2, and 3wt% concentrations of SNPs to Mucopren did not cause a significant change in its cell toxicity in an in vitro condition (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Mothers ’ Knowledge and Practice towards the Effects of Iron Supplementation on Tooth Staining ...
This study aims to assess the mother’s knowledge and practice towards the effects of iron supplementation on dental caries and staining in children aged 6 months to 2 years in Yazd, Iran. Methods: A randomized cross-sectional study was conducted on 403 mothers of children (aged 6 months to 2 years) who referred to healthcare centers in Yazd during 2011. The mothers' knowledge and practice levels were assessed using a questionnaire, and the results were categorized into sufficient or insufficient. The Chi-square test was used to analyze the data. Results: According to the results, 241 (59.8%), and 273 (67.7%) mothers ...
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Effect of Zinc Oxide-Eugenol Temporary Restorations on Bond Strength of Composite Resin
Conclusions: ZO-E can be used for temporary fillings without affecting bond strength of subsequent composite restorations. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Artifacts of Titanium, Zirconium, and Binary Titanium-Zirconium Abutments in Compute ...
Aim: The aim of this in vitro study was to evaluate imaging artifacts induced by Titanium, Zirconium, Titanium-Zirconium abutments in CT, MRI and CBCT imaging modalities.Methods: A 4×8mm titanium fixture was inserted in a dry human mandible. Titanium, Zirconium and Titanium–Zirconium abutments measuring 10.5 mm in height are located on the fixture, one by one. Each abutment was scanned 4 times by each imaging modality. Gray value of the images was evaluated in four determined regions adjacent to distal, mesial, buccal and lingual aspects of the implant as the region of interest (ROI) by two observers using imag...
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Effects of root canal irrigants and medicaments on dentin and vice versa: a review of Literature
Microorganisms are very important in the initiation of pulpo-periapical pathosis. Due to the complexity of the root canal system, the mechanical instrumentation of the root canal system should be supplemented with proper canal irrigants and medicaments. It has been revealed that due to the interactions of canal irrigants and medicaments with dentin and contents of the canal system, the antimicrobial effect of canal irrigants and medicaments in canal (ex vivo) are different from that in vitro. Furthermore, root canal irrigants may decrease the fracture resistance of dentin. The purpose of this paper was to review the data o...
Source: Journal of Dental Materials and Techniques - December 31, 2019 Category: Dentistry Source Type: research

Corrosion of Ni-Ti Rotary Instruments: A Review
The nickel-titanium (Ni-Ti) alloys used in endodontics contain 56% Ni and 44% Ti. The 2 unique features related to clinical dentistry (i.e., shape memory effect and superelasticity) are due to the transition from austenite to martensite in Ni-Ti alloy. When a superelastic Ni-Ti alloy undergoes a low tensile loading, normal elastic behavior occurs. In fact, at higher tensile loads, the elastic stress may reach a level at which there is extended horizontal region of elastic strain. The shape-memory property of Ni-Ti is derived from an atomic arrangement different from that of alloys like stainless steel. The purpose of this ...
Source: Journal of Dental Materials and Techniques - November 3, 2019 Category: Dentistry Source Type: research

Evaluation of the Effect of an Experimental Herbal versus Fluoridated Mouthwash on Frictional ...
Conclusion: The 90-minute immersion in herbal mouthwash did not exert any significant effect on frictional resistance or surface roughness among orthodontic brackets and archwires made of stainless steel and nickel titanium. Based on the results, herbal mouthwash may be prescribed as a non-destructive prophylactic agent on materials evaluated in the present study for the orthodontic patient. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - November 3, 2019 Category: Dentistry Source Type: research

Bone-Borne Maxillary Expansion and Traditional Rapid Maxillary Expansion: A Systematic Review ...
Conclusion: The BBE appliances do not have any advantages over tooth-borne devices with regard to the amount of skeletal or dental expansion; however, it seems to produce less tippin g in posterior teeth. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - October 29, 2019 Category: Dentistry Source Type: research

Evaluation of the Effect of Household Cleansers on the Color Change of Two Types of Permanent ...
Many patients use household cleaners to clean denture which can cause discoloration and damage soft liners. The purpose of this study was to evaluate the effect of household cleansers on the color change of two types of permanent soft liners. Methods: In this interventional study, 80 permanent silicone soft liners, including 40 heat-cured liners (Molloplast-B, Detax Gmbh& Co. KG, Ettlingen, Germany) and 40 self-cure liners (Mucopren soft, Kettenbach GmbH& Co. KG, Eschenburg, Germany) were made in brass molds with dimensions of 15×2 mm in accordance with the manufacturer's instructions. The samples were immers...
Source: Journal of Dental Materials and Techniques - October 29, 2019 Category: Dentistry Source Type: research

The Role of Root Canal Preparation on Apical Geometry: A Review of the Literature
The amounts of apical enlargement have been a controversial issue for a long time. The enlargement of the apical part of the canal may severely impact the endodontic prognosis. Enlargement of the apical portion to a larger size may negatively affect the ability to control the filling material during root canal obturation. In addition, an open-apex increases the risk for overfilling which has been shown to be related with decreased success rate. The retreatment of a tooth with apically enlarged canal may be even impossible. Further preparation of an apically enlarged canal may increase the risk of iatrogenic errors and also...
Source: Journal of Dental Materials and Techniques - October 25, 2019 Category: Dentistry Source Type: research

Stress Distribution in Four Restorative Methods in Endodontically Treated Maxillary Premolar: A ...
Conclusion: The simulation results show that in all models, oblique forces caused more stress than vertical forces. Moreover, there was a slight difference between different types of restorations regarding the magnitude of stress; however, the results obtained from this study showed that woven fiber could partly reduce stresses. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - October 12, 2019 Category: Dentistry Source Type: research

General Anxiety and Dental Fear: Is There A Relationship?
Introduction: Anxiety is an emotional state that helps healthy people defend themselves against threats. Dental anxiety is referred to a patient's specific response to stressful dental practices. The prevalence of dental anxiety is estimated to be between 3-43%. The relation between dental caries and dental anxiety is well understood, which happen as the result of patient’s avoidance of dental visits. We aimed to measure dental fear in patients and evaluate its relationship with general anxiety. Methods: This cross-sectional study was performed on 90 patients referred to Oral medicine Department of Rasht Dental Schoo...
Source: Journal of Dental Materials and Techniques - October 6, 2019 Category: Dentistry Source Type: research

Corrosion of Ni-Ti Rotary Instruments: A Review
The nickel-titanium (Ni-Ti) alloys used in endodontics contain 56% Ni and 44% Ti. The 2 unique features related to clinical dentistry (i.e., shape memory effect and superelasticity) are due to the transition from austenite to martensite in Ni-Ti alloy. When a superelastic Ni-Ti alloy undergoes a low tensile loading, normal elastic behavior occurs. In fact, at higher tensile loads, the elastic stress may reach a level at which there is extended horizontal region of elastic strain. The shape-memory property of Ni-Ti is derived from an atomic arrangement different from that of alloys like stainless steel. The purpose of this ...
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

Evaluation of the Effect of an Experimental Herbal versus Fluoridated Mouthwash on Frictional ...
Conclusion: The 90-minute immersion in herbal mouthwash did not exert any significant effect on frictional resistance or surface roughness among orthodontic brackets and archwires made of stainless steel and nickel titanium. Based on the results, herbal mouthwash may be prescribed as a non-destructive prophylactic agent on materials evaluated in the present study for the orthodontic patient. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

Evaluation of the Effect of Household Cleansers on the Color Change of Two Types of Permanent ...
Many patients use household cleaners to clean denture which can cause discoloration and damage soft liners. The purpose of this study was to evaluate the effect of household cleansers on the color change of two types of permanent soft liners. Methods: In this interventional study, 80 permanent silicone soft liners, including 40 heat-cured liners (Molloplast-B, Detax Gmbh& Co. KG, Ettlingen, Germany) and 40 self-cure liners (Mucopren soft, Kettenbach GmbH& Co. KG, Eschenburg, Germany) were made in brass molds with dimensions of 15×2 mm in accordance with the manufacturer's instructions. The samples were immers...
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

General Anxiety and Dental Fear: Is There A Relationship?
Introduction: Anxiety is an emotional state that helps healthy people defend themselves against threats. Dental anxiety is referred to a patient's specific response to stressful dental practices. The prevalence of dental anxiety is estimated to be between 3-43%. The relation between dental caries and dental anxiety is well understood, which happen as the result of patient’s avoidance of dental visits. We aimed to measure dental fear in patients and evaluate its relationship with general anxiety. Methods: This cross-sectional study was performed on 90 patients referred to Oral medicine Department of Rasht Dental Schoo...
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

Stress Distribution in Four Restorative Methods in Endodontically Treated Maxillary Premolar: A ...
Conclusion: The simulation results show that in all models, oblique forces caused more stress than vertical forces. Moreover, there was a slight difference between different types of restorations regarding the magnitude of stress; however, the results obtained from this study showed that woven fiber could partly reduce stresses. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

Comparing a Combination of Saline and Chlorhexidine with Saline as Root Canal Irrigation ...
Conclusion: Theone-year follow-up showed that there is no diffference between CHX and NSS as irrigation solutions for cleaning the root canals of primary teeth with irreversible pulpitis. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

The Role of Root Canal Preparation on Apical Geometry: A Review of the Literature
The amounts of apical enlargement have been a controversial issue for a long time. The enlargement of the apical part of the canal may severely impact the endodontic prognosis. Enlargement of the apical portion to a larger size may negatively affect the ability to control the filling material during root canal obturation. In addition, an open-apex increases the risk for overfilling which has been shown to be related with decreased success rate. The retreatment of a tooth with apically enlarged canal may be even impossible. Further preparation of an apically enlarged canal may increase the risk of iatrogenic errors and also...
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

Bone-Borne Maxillary Expansion and Traditional Rapid Maxillary Expansion: A Systematic Review ...
Conclusion: The BBE appliances do not have any advantages over tooth-borne devices with regard to the amount of skeletal or dental expansion; however, it seems to produce less tippin g in posterior teeth. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - September 30, 2019 Category: Dentistry Source Type: research

Comparing a Combination of Saline and Chlorhexidine with Saline as Root Canal Irrigation ...
Conclusion: Theone-year follow-up showed that there is no diffference between CHX and NSS as irrigation solutions for cleaning the root canals of primary teeth with irreversible pulpitis. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - September 17, 2019 Category: Dentistry Source Type: research

Infantile Mandibular Fracture Treatment with Double-crossed Skeletal and Circummandibular ...
Abstract The prevalence of mandibular fracture is relatively lower in the pediatric population compared to adults. The treatment of these fractures is more challenging for oral and maxillofacial surgeons due to the concerns regarding mandible growth and the presence of developing tooth buds. According to the literature, conventional methods (e.g., soft diets or closed reduction) are more effective in the treatment of nondisplaced pediatric mandibular fractures. There are few case reports regarding the treatment of mandibular fractures in infants, which have mainly introduced new technique using double-crossed direct skele...
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Is the Detection of Odontoma Always Comfortable? A Case Report
Abstract Odontomas are the most common type of odontogenic tumors, which are often discovered by routine radiographic images or after taking films to determine the main cause of the tooth failure eruption or malocclusion. The present study aimed to describe a case of misdiagnosis and similarity of foreign body density in the radiographic appearance to odontoma in a 13-year-old male.    (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Evaluation of Mechanical Properties of Polyethylene ‌‌ Glycol/ Dextrane Methacrylate / ...
Abstract Introduction: The use of membranes and transplant materials as scaffolds in periodontal regenerative surgeries is gaining an increasing application for restoring the structure and function of lost tissues. The present study aimed to evaluate the mechanical properties of PEG/MA (Polyethylene glycol/Maleic Acid) copolymer as a bioscaffold. Methods: In this experimental laboratory study, a hydrogel scaffold was first manufactured of PEG/MA copolymer. Different hydrogel concentrations were prepared using visible light through changing concentrations of C2/1, c1/1 and C1/2 (C ⅟2, C ⅟1 and C2/1) of PEG/MA copolymer...
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Comparison of the Cytotoxic Effects of Nanoparticulate and Microparticulate Calcium Sodium ...
Conclusion: Nanoparticulate and microparticulate calcium sodium phosphosilicate mouthwashes have no cytotoxicity against HGFs. Cytotoxicity of the nanoparticulate mouthwash was less than that of the microparticulate mouthwash. Also, increased proliferation of fibroblasts was noted over time in both groups of mouthwashes.   (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Development of a Questionnaire to Evaluate the Knowledge and Attitudes of Medical Students ...
Conclusion: The designed questionnaire was confirmed as reliable considering Iranian cultural concepts.   (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Efficacy of Different Irrigation Systems Used To Remove Calcium Hydroxide from the Root Canal
This study was conducted on the mesial roots of 36 human mandibular molar teeth. After 1 month, the Ca(OH)2 was removed from the experimental groups using four different irrigation techniques (SAF, PUI, EndoVac, and CSI). The inner surfaces of the canals were examined using a stereomicroscope at 30x magnification. The assessment of remaining Ca(OH)2 medicament in the grooves was performed by three calibrated dentists using a scoring system ranged 0-3. Results: None of the groups showed complete Ca(OH)2 removal from the root canals. The PUI technique removed significantly more Ca(OH)2 from all root canals, compared to ...
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Comparison between Biaxial Flexural Strength and Microstructure of Polished and Glaze-Fired ...
Conclusion: Glazing and firing of Celtra Duo specimens increased biaxial flexural strength significantly in comparison to polishing with no significant change in the microstructure.   (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Effect of Two Disinfecting Agents on the Microleakage of Resin-Based Composite Restorations in ...
Introduction: Disinfection of the cavity preparation after caries excavation can lead to the elimination of bacterial remnants that can be responsible for recurrent caries, postoperative sensitivity, and failure of the restoration. The purpose of this study was to evaluate the effects of two disinfectants on microleakage of composite restorations in primary teeth. Methods:In this experimental study, 40 extracted primary canine teeth without caries were randomly divided into four groups of 10 teeth, namely control group (1), pretreatment group with chlorhexidine 2% (2), pretreatment group with sodium hypochlorite 2/5% (3), ...
Source: Journal of Dental Materials and Techniques - June 26, 2019 Category: Dentistry Source Type: research

Designing a questionnaire to evaluate knowledge and attitude of medical sciences students ...
Conclusion: The questionnaire was designed and became reliable considering Iranian cultural concepts. (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - June 24, 2019 Category: Dentistry Source Type: research

The effect of two disinfecting agents on the microleakage of resin based composite restorations ...
Introduction: Disinfection of the cavity preparation after caries excavation can aid in the elimination of bacterial remnants that can be responsible for recurrent caries ,postoperative sensivity ,and failure of the restoration. The purpose of this study was evaluating the effects of two disinfectants on microleakage of composite restorations in primary teeth. Methods: In this experimental study, forty extracted primary canine teeth without caries randomly divided into four groups (n=10). Class V cavities were prepared. group 1)control, group 2)pretreatment with chlorhexidine%2, group 3)pretreatment with sodium hypochlorit...
Source: Journal of Dental Materials and Techniques - June 24, 2019 Category: Dentistry Source Type: research

Is the Detection of Odontoma Always Comfortable? A Case Report
Odontomas are the most common type of odontogenic tumors, which are often discovered by routine radiographic images or after taking films to determine the main cause of the tooth failure eruption or malocclusion. The present study aimed to describe a case of misdiagnosis and similarity of foreign body density in the radiographic appearance to odontoma in a 13-year-old male.    (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - June 11, 2019 Category: Dentistry Source Type: research

Infantile Mandibular Fracture Treatment with Double-crossed Skeletal and Circummandibular ...
The prevalence of mandibular fracture is relatively lower in the pediatric population compared to adults. The treatment of these fractures is more challenging for oral and maxillofacial surgeons due to the concerns regarding mandible growth and the presence of developing tooth buds. According to the literature, conventional methods (e.g., soft diets or closed reduction) are more effective in the treatment of nondisplaced pediatric mandibular fractures. There are few case reports regarding the treatment of mandibular fractures in infants, which have mainly introduced new technique using double-crossed direct skeletal wires ...
Source: Journal of Dental Materials and Techniques - June 1, 2019 Category: Dentistry Source Type: research

A Case Report of Infantile Mandibular Fracture Treatment with Double-Crossed Skeletal and ...
The mandibular fracture prevalence is relatively less in the pediatric group compared with adults. These fractures treatment is more challenging for oral and maxillofacial surgeons due to the concerns regarding mandible growth and the developing tooth buds. Regarding the articles, nondisplaced pediatric mandibular fractures are better treated by traditional methods of soft diet or closed reduction. There are only limited case reports about mandibular fracture treatment in infants. The authors have introduced a new technique using double-crossed direct skeletal wires reinforcing circummandibular wirings for conservative tre...
Source: Journal of Dental Materials and Techniques - June 1, 2019 Category: Dentistry Source Type: research

A Rare Case of Maxillary Compound Odontoma with an Unusual Large Number of Denticles
Odontoma is the most frequent odontogenic gnathic tumor, which is considered to be a hamartomatous lesion rather than an actual odontogenic tumor. Odontoma is basically composed of enamel and dentin, while it could also have various contents of cementum and pulp tissue. These lesions may manifest in two specific forms, including the compound type with multiple, small, tooth-like structures and the complex form with amorphous calcified masses. The early detection, management, and surgical enucleation of odontomas are recommended to prevent tooth eruption disturbances and further pathological complications. The present study...
Source: Journal of Dental Materials and Techniques - March 19, 2019 Category: Dentistry Source Type: research

In-vitro Evaluation of Microleakage in Root Canal Obturation with Mineral Trioxide Aggregate ...
Introduction: Endodontic treatment failure is caused by the leakage of microorganisms and endotoxins, which leads to pathological lesions. Adequate seal of the root canal is essential to preventing recontamination and ensuring the long-term clinical success rate. Mineral trioxide aggregate (MTA) and calcium-enriched mixture cement (CEM) are common types of cement with adequate sealing capability in endodontics. The present study aimed to compare the microleakage in the root canals filled with ProRoot MTA and CEM cement using fluid filtration. Methods: This experimental, in-vitro study was conducted on 46 root canals of ext...
Source: Journal of Dental Materials and Techniques - March 19, 2019 Category: Dentistry Source Type: research

Treatment of Gingival Recession Associated with Non-Carious Cervical Lesions Using Resin ...
Conclusion: According to the results, both groups achieved comparable root coverage, while the presence of restoration led to a greater reduction in dentin hypersensitivity.   (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - March 19, 2019 Category: Dentistry Source Type: research

The Prevalence of Partial Changes in the Condylar Head in the Patients with Osteoarthritis: A ...
In this study, 80 CBCT images of the temporomandibular joint (TMJ) pertaining 20 patients with osteoarthritis and 20 healthy individuals were evaluated, as well as the CBCT images that were obtained for other reasons. The images were reviewed in the coronal and sagittal sections. Considering the higher prevalence of osteoarthritis in women and after eliminating gender-based interventions, all the female patients were enrolled in the study. Chi-square was used to evaluate the correlations between the changes in the condylar head by the grouping of the patients, and the significance level was considered at 0.05. Results...
Source: Journal of Dental Materials and Techniques - March 19, 2019 Category: Dentistry Source Type: research

Effects of 0.2% Chlorhexidine and Re-polishing on the Color Stability of Nanofilled Composite Resins
Introduction: The growing demand for esthetic dental procedures has resulted in the increased development of new restorative composite resins. The success of composite resin restorations depends on their color stability over time. The present study aimed to evaluate the effects of 0.2% chlorhexidine (CHX) and re-polishing on the color stability of nanofilled composite resins. Methods: This interventional, in-vitro study was conducted on 48 disk-shaped samples (diameters: 8×2 mm), which were prepared using Z350 (3M ESPE, USA) and Grandio (VOCO, Germany) A2 shade composite resins. The samples were divided into four gro...
Source: Journal of Dental Materials and Techniques - March 19, 2019 Category: Dentistry Source Type: research

Comparative Evaluation of the Flexural Strength of Heat Polymerized Acrylic Resin with the ...
Conclusion: Addition of alumina to conventional heat-cured acrylic resin shows increase in flexural strength. Increasing the flexural strength of acrylic resin base materials could results in higher clinical success rate.   (Source: Journal of Dental Materials and Techniques)
Source: Journal of Dental Materials and Techniques - March 19, 2019 Category: Dentistry Source Type: research