Vol. 9 No. 2 (2019): International Dental Research

Aim: The aim of the study was to examine the prevalence of maxillary sinus septa (MSS) in a Turkish population, using cone-beam computed tomography (CBCT).
   Methodology: The CBCT images of 350 untreated patients (178 male, 172 female ranging in age between 18 and 65) were included in this study. The presence or absence of MSS was determined in axial, sagittal, and coronal planes by considering gender and side. For statistical evaluation, a chi‐square test was used to determine any differences in the prevalence of MSS with significance set at 5%.   Results: MSSs were observed in 201 out of 700 sides (28.71%) and 141 out of 350 patients (40.28%), of which, 70 were in males and 71 in females. MSS were also observed in a higher prevalence on the bilateral side. (17.14%). Female patients showed higher prevalence (41.27%) than the male patients (39.32%). Conclusion : MSS was observed in 40.28% of examined Turkish subjects and detected more frequently in females and on the bilateral side.   How to cite this article:  Laçin N, İzol BS. Evaluation of septas in maxillary sinus with cone-beam computed tomography. Int Dent Res 2019;9(2):41-5.   Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Aim: Extrinsic tooth staining potential of iron replacement therapy causes a belief among the parents that these drugs cause tooth decay. In order to clarify this suspicion, the relationship between iron replacement therapy, dental iron concentrations and tooth decay was examined. Results: There was no significant difference between the DMFT score of children who received regular iron replacement during infancy and who did not recieve. There was not a statistically significant difference between the median iron concentration in the primary teeth of the children who were supplemented with iron in their toddler’s age (10,5 mikrog/gr (5,3-17,3)) and were not supplemented (5,6 mikrog/gr (0,64 – 48,9)). Conclusions: The results of the study showed that iron replacement had no adverse effect on the primary teeth.   How to cite this article:  Arat Maden E, Eker İ, Erdem O. Evaluation of the Effects of Iron Containing Supplements on Primary Teeth of Children. Int Dent Res 2019;9(2):46-50.    Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Objective: The purpose of this study was to investigate the alveloar palatine bone thickness of the maxillary central incisors using cone-beam computed tomography (CBCT). Material and Methods: This study used the CBCT images of 480 patients (240 male – 240 female). In order to determine bone thickness, measurements were made on the program perpendicularly to the long axis of the tooth at 3 points selected from the 3, 6 and 9 mm apical or the enamel-cement border in parallel to the long axis of the central teeth. Results: For the left central teeth, the mean palatine bone thickness was found for the coronal, medial and apical regions as 1.48 mm, 3.09 mm and 5.13 mm, respectively, while these values were respectively 1.35 mm, 2.95 mm and 5.10 mm for the right side. Conclusion: Considering that there should be a bone of at least 1 mm thickness on socket walls for immediate implantation, it was determined that palatine bone thickness is not sufficient by itself for immediate implantation. As a result of the analysis, it was seen that the palatine alveloar bone thickness that was observed in women was thinner than that in men.   How to cite this article:  Üner DD, İzol BS. Analysis of whether or not the alveloar palatine bone thickness of the central incisors is sufficient for implants of 3 mm and 3.5 mm thickness using cone-beam computed tomography. Int Dent Res 2019;9(2):51-7.   Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Aim: This study measured the microhardness of a newly developed glass carbomer dental filling material within the first 24 hours after setting and compared it against that of two different glass ionomers, with and without heating during setting, and a resin-modified glass ionomer. Methodology: Six cavities were prepared on acrylic resin discs. PMMA blocks were randomly divided into six groups of six cylinders and each cavity was filled with one of the tested materials according to their group. The groups were: Group1, Fuji Triage™ with heat; Group 2, GCP Glass Fill™; Group 3, Equia™ with heat; Group 4, Riva LC™; Group 5, Fuji Triage™; and Group 6, Equia™. Microhardness was measured by the Vickers hardness scale using a microindentation hardness tester at 2, 4, 6, 12 and 24 hours after initial setting of the materials. Results: After 24 hours, the glass carbomer  (GCP Glass Fill™) was not the strongest of the tested materials. Fuji Triage™ with heat applied during setting (Group 1) proved to be the hardest material, while Riva LC™ (Group 4) and GCP Glass Fill™ (Group 2) were the softest.  Heating the Fuji Triage™ during the initial setting period significantly increased its physical strength after 24 hours.   How to cite this article:  Arslanoğlu Z, Kale E, Meşe A, Altan H. Evaluation of microhardness of newly developed glass carbomer-based dental filling material. Int Dent Res 2019;9(2):58-62.   Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Introduction:  The aim was to compare root canal wall cleanliness, amounts of apically extruded debris and irrigant during retreatment using the ProTaper Universal Retreatment (PT) system or balanced force technique (BFT). Materials and Methods: Root canals of extracted mandibular premolar teeth (n=44) were endodontically prepared and obturated, then the teeth were divided into two groups: BFT and PT. Apically extruded material was collected into preweighed Eppendorf tubes using the Myers and Montgomery method. The root halves were photographed under a stereomicroscope. Area of the remnant filling material (coronal, middle, apical thirds and total canal surface) was measured by software. Data were analyzed by Mann-Whitney U test. Results: The BFT and PT system provided similar degrees of canal wall cleanliness (p > 0.05) and amounts of extruded irrigant (p>0.05). The PT system caused less debris extrusion (p<0.05). Conclusions: Although the BFT was shown to cause less apical extrusion in primary root canal treatment compared to other manual instrumentation techniques, in the present study, BFT caused more debris extrusion than the PT group.   How to cite this article:  Sarıçam E, Altunkaynak B, Kayaoğlu G. ProTaper Retreatment system versus balanced force technique for apical extrusion and gutta-percha removal. Int Dent Res 2019;9(2):63-8.   Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Objective: Mandibular canal, mandibular foramen, mental foramen and insisiv canal are so important anatomical structures for dental surgery. The aim of this study was to evaluate the visibility of these important landmarks in different age groups and to compare the visibility in dentulous group with edentulous group on panoramic radiographs. Methods: The panoramic radiographs of 500 patients (237 males; 263 females; mean age; 39.2) were evaluated for this study. The visibility of anatomical landmarks were analyzed in the radiographs and scores were noted. The data obtained in this study were analyzed by SPSS 21 package program. The value of p<0.05 was considered statistically significant.   Results: Out of 500 radiographs, mandibular canal, mandibular foramen, mental foramen and incisive canal was visible in 89.8%, 88%, 80.6% and 12.8%, respectively. 23 (4.6%) patients had total tooth loss. The visibility of the anatomical landmarks was observed in groups below 25 years old. Conclusion : Panoramic radiographs provide useful information on the visibility of anatomical landmarks. However, the use of 3D imaging methods before surgical procedures will give more accurate results.   How to cite this article:  Serindere G, Aktuna Belgin C. The evaluation of visibility of mandibular anatomic landmarks using panoramic radiography. Int Dent Res 2019;9(2):69-77.   Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Together with developments in digital imaging systems, there has been increasing use of micro-computed tomography (μCT) in many areas, primarily in dentistry. As this method allows 3-dimensional images to be taken providing safe and high quality results, without damaging the samples being examined, it is often preferred. Consequently, it has become possible to record rapid progression in endodontic studies in particular and to research and easily compare several techniques. Furthermore, this method can be used in tissue engineering, forming data for FEM analysis, the growth and development of craniofacial bones, imaging bone structure, and in the evaluation of implants and surrounding bone in root tip surgery, to determine mineral concentration in the teeth and to measure the thickness of enamel. The aim of this review was to focus on the areas of use of μCT in dentistry and state the advantages. Key Words : Micro-computed tomography, X-ray micro-CT, dental application, three-dimensional imaging   How to cite this article: Erpaçal B, Adıgüzel Ö, Cangül S. The use of micro-computed tomography in dental applications. Int Dent Res 2019;9(2):78-91.   Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.