bluuebunny/crossref_metadata_2025_split huggingface dataset:
The comparison of cyclic fatigue resistance of two different reciprocal files according to different access angles into the root canal
Authors: Dundar Mehmet , Adıgüzel Özkan , Kaya Sadullah 
Published: January 2022

Aim: Root canal preparation is one of the most important steps of root canal treatment. Preparation procedure includes disinfection and shaping protocols. Ni-Ti rotary file systems are usually used for shaping. The biggest disadvantage of the usage of Ni-Ti rotary file systems is that the file gets broken during the treatment. There are many reasons for the breakage of files. One of the reasons may be the increase in the access angle. The purpose of this study is to compare the cyclic fatigue of reciprocating Reciproc and WaveOne Gold rotary systems according to different angles of accessing the root canal of Ni-Ti files.
Methodology: In our study, 90 root canal files were used, 45 of which is Reciproc R25 (VDW GmbH, Munich, Germany) and the other 45 of which is WaveOne Gold Primary 25/07 (Dentsply, Maillefer, Ballaigues, Switzerland). Specially designed and manufactured stainless steel artificial roots whose curvature angle is 60° and curvature radius is 5 mm, which replicates the clinical conditions, were arranged. By enabling the files access the roots at 0°- 15°- 30° degrees, the lap numbers that they do till they break due to cyclic fatigue were examined.
Results: When looking at the lap numbers that the Reciproc and WaveOne Gold root canal files do till they break, at accessing the roots at the same angles WaveOne Gold root canal file makes more lap numbers at all angles when compared with the Reciproc root canal file. Significant results were found when the groups were compared within one another and between groups and among all numeric data in the statistical analysis performed. It was also found that WaveOne Gold root canal file had more cyclic fatigue resistance. When the groups were compared within one another, it was found that the increase in the root access angle decreases the cyclic fatigue resistance of the files (p<0.05). No significant difference was found in the statistical analysis for comparison of the length of the broken file pieces (p=0.01). It was analyzed that when the broken files were examined via scanning electron microscope, file breakages occurred due to cyclic fatigue.
Conclusion: Not only do the design features and production technology affect the breakage resistance due to cyclic fatigue of the root canal, the access angle to the roots affects the cyclic fatigue of the root canal files, as well.

How to cite this article: Adıgüzel Ö, Dundar M, Kaya S. The comparison of cyclic fatigue resistance of two different reciprocal files according to different entry angles into the root canal. Int Dent Res 2021;11(Suppl.1):114-21. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.18

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Retrospective evaluation of fiber-reinforced periodontal splints and resin bridges in the anterior region
Authors: Ünlü Nimet , Altınbilek Nurdan , Velioğlu Mehmet Semih 
Published: January 2022

Aim: The aim of this study was to evaluate the clinical performance of fiber-reinforced periodontal splints (FRSs) and adhesive bridges (FRBs) in treating anterior single-tooth defects.
Methodology: Sixty-five patients who received FRSs and FRBs from 2001 to 2012 were recalled and evaluated clinically. The FRS and FRB restorations of the patients were clinically evaluated in terms of anatomical form, marginal adaptation, marginal coloration, secondary caries, and retention, according to the modified United States Public Health Service (USPHS) criteria. The current restoration statuses of the patients from 5 to 10 years post-treatment were photographed and recorded. Patient satisfaction level was assessed using a visual analogue scale (VAS), and periodontal pocket depth was measured. Clinical follow-up data were obtained and analyzed with the Chi-squared test (p<0.05).
Results: When each of the modified USPHS criteria was compared with the baseline values, statistically significant differences were observed between the groups. There were statistically significant differences when the categories were evaluated according to initial values (p<0.05). When the clinical evaluation criteria were compared with each other, no statistically significant differences were found (p>0.05). While the most successful results were obtained in the FRB group, most of the restoration losses and repairs occurred in the FRS group. According to the data obtained, 38% of restorations were lost and all restorations had been intact for at least 5 years. All lost restorations were in FGS restorations. The recall rate was 49% (n=32). Twenty (62.5%) of 32 patients rated their satisfaction with the restorations as being between 90 and 100, 8 (25%) as being between 80 and 90, and 4 (12.5%) as being between 70 and 80 on the VAS scale. The pocket depths of the patients at 5- and 10-years post-restoration were 2.3–3.8 mm and 2.4–5.2 mm, respectively.
Conclusion: Fiber-reinforced restorations performed due to the loss of anterior single teeth and periodontal tissue can serve patients clinically for at least 5 years. FGK and FGS restorations can be considered alternative treatments that can further delay the more expensive implant and prosthetic treatment options for years.

How to cite this article: Ünlü N, Altınbilek N, Velioğlu MS. Retrospective evaluation of fiber-reinforced periodontal splints and resin bridges in the anterior region. Int Dent Res 2021;11(Suppl.1):122-7. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.19

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Comparison of cephalometric changes resulting from different upper incisor intrusion methods
Authors: Süer Tümen Demet , Hamamcı Orhan 
Published: January 2022

Aim: The aim of this study was to provide intrusion of upper incisors with applying Connecticut Intrusion Arch (CIA) and Miniscrew and to evaluate the dental and skeletal cephalometric effects of these intrusion methods on individuals with deep bite caused by supraocclusion of upper incisors.
Methodology: The study includes 40 adults, without making sexual distinction, who have at least 4 mm deep bite caused by supraocclusion of upper incisors. Two study groups each consisting 20 individuals formed as CIA and Miniscrew groups. Skeletal, dental, soft tissue measurements were done on lateral cephalograms and apical root resorption measurements were done on standard periapical radiographs that were taken from upper four incisor teeth. Statistically, Paired Student’s t-test was used in intragroup comparements and independent Student’s t-test was used in the investigation of differences between groups. Nevertheless, the concern of variables that seen as risk factors with the amount of resorption was investigated with Pearson correlation analysis.
Results: Successful intrusion of four upper incisor teeth with CIA and Mini screw methods and in-significant difference was determined between two methods. Protrusion of upper and lower incisor teeth decrease in interincisal angle and overbite and increase in overjet was stated by intrusion at both of the methods. The decline of the mesiobuccal cusp of the upper first molar was observed in the CIA method. In soft tissue evaluation, decrease of upper lip length, upper lip thickness and distance of upper and lower lip to the Rickett’s plane was observed.
Conclusion: The methods used for intrusion showed to cause similar ratio of root resorption.

How to cite this article: Süer Tümen D, Hamamcı O. Comparison of cephalometric changes resulting from different upper incisor intrusion methods. Int Dent Res 2021;11(Suppl.1):177-94. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.26

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Comparison of the accuracy of three different electronic apex locators used in root canals enlarged in different apical diameters
Authors: Öz Hasan , Adıgüzel Özkan , Kaya Sadullah 
Published: January 2022

Aim: This study aimed to evaluate the accuracy of three apex locators in enlarged teeth with different apical diameters using files that are compatible and incompatible with the apical diameters.
Methodology: Sixty lower premolars were used in this study. The actual canal length was determined with a stereo microscope, and the teeth were divided into three different groups (G25, G40 and G50).
The teeth in G25, G40 and G50 were enlarged in actual canal length with apical diameters of 0.25, 0.40 and 0.50 mm using hand files and Reciproc R25, R40, and R50, respectively. In the electronic measurements, a #15 hand file was used in each group, and #25, #40 and #50 hand files that were compatible with the apical diameters of the teeth in the groups were used. An alginate model was created with enlarged teeth. The electronic working length was determined for each tooth using Root ZX Mini, Raypex 6, and Propex Pixi electronic apex locators (EALs).
Results: Electronic measurement results that were shorter by 0.50 mm or longer by 0.05 mm than the actual length were considered unsuccessful; otherwise, they were deemed successful. Analysis of variance was used to evaluate the accuracy of the EALs with different files in the same apical diameter. For the different apical diameters, the chi-square exact test was used to evaluate the accuracy effect of using files that were incompatible with each apical diameter. The level of significance was p > 0.05.
In all the groups, the measured lengths were closer to the actual canal length with the use of #25, #40 and #50 hand files that were compatible with the apical diameters. However, there was no significant difference between the measurements with the #15 hand file (p > 0.05).
According to the electronic measurement results made with the #15 hand file in teeth with 0.25, 0.40 and 0.50 apical diameters, the use of a file that was incompatible with the apical diameter did not have a significant effect on accuracy (p > 0.05).
Conclusion: The use of a file that is compatible with the apical diameter of the tooth in the determination of the working length with measurement of EALs close to the actual canal length. The accuracy of EALs is not affected by the file size in electronic measurements with file sizes smaller than the apical diameter in teeth with apical diameters up to 0.50 mm.

How to cite this article: Öz H, Adıgüzel Ö, Kaya S. Comparison of the accuracy of three different electronic apex locators used in root canals enlarged in different apical diameters. Int Dent Res 2021;11(Suppl.1):12-8. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.3

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Evaluation of the color stability and surface roughness of dual-cure, bulk-fill composites
Authors: Şivgan Güner Zehra , Bolgül Behiye , İnandı Tacettin 
Published: January 2022

Aim: In recent years, tooth-colored, dual-cure, bulk-fill composite resins, which have attracted attention for their ease of use, constitute one of the latest developments in pediatric dentistry applications. This study aimed to evaluate the color stability and surface roughness properties of three different dual-cure, bulk-fill materials and one light-cure, bulk-fill composite material used in pediatric dentistry.
Methodology: In this study, three different dual-cure, bulk-fill composites (Fill-Up, HyperFIL, Cention-N) and one light-polymerized bulk-fill composite (Reveal HD) were used. A total of 70 samples were obtained for surface roughness testing. The surface roughness testing was performed with a Hysitron TI 950 Triboindenter device. A total of 105 samples were obtained for the evaluation of color stability. Cherry juice, iced tea, and distilled water were used as solutions. Initial and final color measurements were made using a spectrophotometer. The color differences between measurements were recorded according to the CIEDE 2000 system.
Results: The least surface roughness among the composite groups was observed in the light polymerized Cention-N composite samples in the experimental group. In the Fill-Up and Cention-N composite groups in the experimental group, the surface roughness of the samples left to self-polymerization and the samples polymerized with light showed a statistically significant difference (p < 0.05). Among the composite groups, the highest amount of coloring was observed in the Fill-Up composite samples, which were left to self-polymerization and kept in cherry juice in the experimental group. The least coloration among the composite groups was observed in the Cention-N composite samples polymerized with light and kept in distilled water.
Conclusion: Based on this information, a decrease in surface roughness and an increase in color stability can be expected due to self-polymerization and the light polymerization of dual-cured, bulk-fill composites.

How to cite this article: Şivgan Güner Z, Bolgül B, İnandı T. Evaluation of the color stability and surface roughness of dual-cure, bulk-fill composites. Int Dent Res 2021;11(Suppl.1):266-273. https://doi.org/10.5577/intdentres.2021.vol11.suppl.39

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Clinical examination of various jaw fractures and evaluation of open and closed reductions: Six case reports
Authors: Ataözden Tahir , Başaran Mustafa Mert , Özüdoğru Semanur 
Published: January 2022

Aim: This study aims to present the fracture types and treatment methods of jaw fracture cases that presented at our center.
Methodology: Of six presenting cases, two were angulus, one was parasymphysis, three were subcondylar, and one was a medial condyle fracture only. All patients were evaluated both clinically and radiologically by CT of the atlanto-occipital joint. We managed two of the mandibular fractures with open and closed reduction (mixed) and four with closed reduction only. Dislocation was observed in only two patients. Internal fixation was performed using either mini plates (Medartis, Basel, Switzerland) or mini-screws. All cases united within three weeks to three months.
Results: After analyzing the epidemiology of six fractures and the outcomes of the surgical treatment, as well as assessing the complications related to the surgical procedures, it was determined that in cases with dislocation, bimaxillary fixation should be applied as a maintenance to open reduction therapy. In cases without dislocation, bimaxillary fixation only is sufficient.
Conclusion: An analysis of dislocation conditions according to fracture type supports that the incidence of dislocation is low in condyle fractures.
Conclusion: An analysis of dislocation conditions according to fracture type supports that the incidence of dislocation is low in condyle fractures.

How to cite this article: Özüdoğru S, Başaran MM, Ataözden T. Clinical examination of various jaw fractures and evaluation of open and closed reductions: Six case reports. Int Dent Res 2021;11(Suppl.1):274-8. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.40

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Treatment of anatomic canal variations in premolar teeth: Five case reports
Authors: Bodrumlu Emre , Dinger Esma 
Published: January 2022

Aim: The aim of this case report is to present a series of anatomical variations and endodontic treatments in four two-canal mandibular premolar teeth and three rooted three-canal maxillary second premolar teeth with root canal treatment indications identified via clinical and radiographic examinations.
The success of root canal treatment is achieved with a thoroughly examined root canal morphology that has been accurately determined radiographically and clinically before adequate shaping, irrigation, and hermetic filling procedures. Root canals that are not found or not adequately disinfected can cause root canal treatment failure and complications, such as pain, swelling, or persistent fistula, also known as flare-up, after treatment.
Canal variations in the teeth were detected via periapical radiographs during the root canal instrumentation stage.
Methodology: The endodontic treatments of four two-canal mandibular premolar teeth and one triple-rooted three-canal maxillary second premolar with root canal treatment indications were described.
Conclusion: To achieve full success in root canal treatment, anatomical variations should be examined in detail before and during treatment, and treatment should be completed with appropriate techniques.

How to cite this article: Dinger E, Bodrumlu E. Treatment of anatomic canal variations in premolar teeth: Five case reports. Int Dent Res 2021;11(Suppl.1):279-84. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.41

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Prosthetic rehabilitation of a hypohidrotic ectodermal dysplasia patient: A case report
Authors: Gökçe Dersim , Ayna Emrah , Seyfioğlu Polat Zelal 
Published: January 2022

Aim: Ectodermal dysplasia is a rare hereditary disease that arises from a developmental disorder of 2 or more ectoderm-derived tissues. Ectodermal dysplasia is seen in 3 different types: anhidrotic, hypohidrotic, and hidrotic. Its anhidrotic and hypohidrotic types are the most common. This study presents the intraoral findings and dental treatment approach of a case diagnosed with hidrotic ectodermal dysplasia that demonstrates the typical characteristics of the disease, such as anodontia, hypohydrosis (reduced sweating), hypotrichosis (sparse hair), and loss of vertical dimension.
Methodology: A 5-year-old male patient presented to the clinic of the Prosthetic Dental Treatment Department of the School of Dentistry at Dicle University on 25.10.2020 with complaint of missing teeth. A genetic analysis conducted in 2016 showed that he was a homozygous carrier of the p.Cys148Arg (c.442 T>C) mutation on the 5th exon of the ectodysplasin-A receptor (EDAR) gene. The mutation detected in the patient was associated with ectodermal dysplasia. An extraoral clinical examination revealed sparse hair, eyebrows, and eyelashes; soft, smooth, and dry skin; thin, linear wrinkles around the eyes and the lips; drooping, thickened lips; a sunken nose; fractured nails; hyperthermia due to lack of sweat glands; hyperkeratosis in the skin and soles of the feet; 2 nipples on one side of the chest; and reduced vertical facial height. An intraoral examination revealed anodontia; there were no teeth on the maxilla or the mandible and no radiographically identified tooth germ. Dry mouth due to a lack of sufficient saliva was another finding.
Conclusion: In this case report, in the presence of anodontia, a removable total prosthesis, which is a non-invasive treatment option, was applied. Production of endosseous implants was postponed for a later time following the patient’s growth and development.

How to cite this article: Gökçe D, Ayna E, Seyfioğlu Polat Z. Prosthetic rehabilitation of a hypohidrotic ectodermal dysplasia patient: A case report. Int Dent Res 2021;11(Suppl.1):292-8. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.43

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Shortening of bones using novel contraction osteogenesis device: An experimental study
Authors: Ocak Hakan , Kılıç Erdem , Alkan Alper 
Published: January 2022

Aim: Given the high complication rates associated with orthognathic surgery for the correction of maxillomandibular malformations, studies have focused on alternative methods of strengthening the jaw, such as distraction osteogenesis. However, methods of shortening of the jaw are not well-elucidated in oral and maxillofacial surgery practice. This study aims to investigate the efficacy of a new method of shortening osteotomized jaws.
Methodology: A 2.5–3 cm skin incision was made on the left tibia of each of 15 New Zealand white rabbits aged 12–18 months, followed by fixation of 15 mm pre-opened distractor devices to the tibia after osteotomy. After a five-day latency period, the distractors were activated to a total of 8 mm, with closure of the device set at a rate of 0.25 mm/day in the test group. After a five-day latency period, the distractors closed at a rate of 0.125 mm/day, achieving a total contraction of 5 mm. The distractors were not activated in the control group. The bone at the contraction range was evaluated, and the resultant shortening was measured.
Results: The tibia was shortened by an average of 4.32 mm. Exaggerated bone formation was identified around the osteotomized cortical bone in all rabbits in the control and study groups, and there were minimal complication rates.
Conclusion: This study verified that the jaw can be shortened by performing slow, controlled contraction with a bone resorption pattern.

How to cite this article: Ocak H, Kılıç E. Alkan A, Shortening of the bones using a novel contraction osteogenesis device: An experimental study. Int Dent Res 2021;11(Suppl.1):26-31. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.5

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.