scholarly journals The Root Length Of Mandibular Second Molar By Using Periapical Radiography On Batak Ethnics Aged 18-22 Years In Faculty Of Dentistry University Of Sumatera Utara

2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Dewi Kartika ◽  
Rizky Agustin Putri
Keyword(s):  
Root Length ◽  
Accurate Method ◽  
Cross Sectional ◽  
X Ray ◽  
Purposive Sampling ◽  
Second Molar ◽  
Dental Problem ◽  
Molar Teeth ◽  
Mandibular Second Molar ◽  
Periapical Radiography

Introduction: Mandibular second molar teeth often undergoes dental problem. The root length of mandibular second molar should be known to assist in determining treatment of endodontic plan. However the length of root of each individual varies, therefore the purpose of this study was to determine the average of the root length of mandibular second molar on Batak ethnics by using periapical radiography. Periapical radiography is the most accurate method to evaluate the root length of mandibular second molar. Materials and Methods: The method of this research was descriptive with cross sectional approach. The number of samples were 50 students selected by purposive sampling and the data were collected by questionnaire and x-ray photographs. The research was conducted in Radiology Dental of Hospital, Faculty of Dentistry,University of Sumatera Utara, on March and April 2016. Results: The root length of mandibular second molar on Batak ethnic student in Faculty of Dentistry University of Sumatera Utara was 9-18 mm. Conclusion(s): It can be concluded that average of the root length of mandibular second molar for the mesial is 13.9 mm and at distal root is 12.4 mm.

scholarly journals Identification of the Most Appropriate Site for the Cold Test in Molar Teeth

2017 ◽  
Vol 20 (1) ◽  
pp. 79-88
Author(s):  
Brenda E. Castillo-Silva MSc, PhD ◽  
Nuria Patiño-Marín MSc, PhD ◽  
Gabriel Alejandro Martínez-Castañón MSc, PhD ◽  
Carlo E. Medina-Solís DDS, MS ◽  
Norma Verónica Zavala Alonso MSc, PhD ◽  
...  
Keyword(s):  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Cold Test ◽  
Cross Sectional ◽  
Posterior Teeth ◽  
Predictive Values ◽  
Second Molar ◽  
Molar Teeth ◽  
Mandibular Second Molar

A test frequently used to complement endodontic diagnoses is the cold test; however, in the last 20 years, authors have reported incorrect results within pulp sensitivity tests. Specifically, a high frequency of false results in posterior teeth, were found. The aim of this study was to identify the most appropriate site for the cold test in molar teeth with a need for endodontic treatment, calculating predictive values, accuracy and reproducibility. A cross-sectional study was performed, evaluating 390 subjects. A total of 152 subjects of both genders from the ages of 15-65 years old participated. The ideal standard was established by direct pulp inspection, and the cold test agent used was 1,1,1,2-tetrafluoroethane. The patients were divided into four groups in relation to the molar tooth: (1) mandibular first molar, (2) mandibular second molar, (3) maxillary first molar, and (4) maxillary second molar. 169 teeth and 676 sites were studied. (a) The most appropriate sites for cold test were the middle third of the buccal surface and cervical third of the buccal surface in the mandibular molars with the following results: Middle third of the first molar: Accuracy 0.93, positive predictive value 0.90 and negative predictive value 0.96. Middle third of the second molar: Accuracy 0.93, positive predictive value 1.00 and negative predictive value 0.90. In relation to third cervical the results were: First molar: Accuracy 0.93, positive predictive value 0.89 and negative predictive value 0.97 y second molar: Accuracy 0.93, positive predictive value 1.00 and negative predictive value 0.90. (b) The highest reproducibility was observed in the middle third of the buccal surface with cervical third of the buccal surface in the mandibular second molar (1.00). The most appropriate site and reproducibility of the sites are auxiliary to complement endodontic diagnose with the cold test.

scholarly journals A case of tooth fracture occurred upon medicating bisphosphonate for an elderly person: Preservation therapy and responses for Stage 0 of bisphosphonate-related osteonecrosis of jaw

2017 ◽  
Vol 11 (02) ◽  
pp. 258-263
Author(s):  
Noriko Suzuki ◽  
Hitoshi Oguchi ◽  
Yu Yamauchi ◽  
Yasuyo Karube ◽  
Yukimi Suzuki ◽  
...  
Keyword(s):  
Elderly Person ◽  
Signs And Symptoms ◽  
Apical Position ◽  
X Ray ◽  
Second Molar ◽  
Tooth Fracture ◽  
Molar Teeth ◽  
Osteonecrosis Of Jaw ◽  
Bone Exposure ◽  
Symptoms And Signs

ABSTRACTThis case report aimed to report the progress of preservation therapy and response of symptoms and signs for Stage 0 of bisphosphonate-related osteonecrosis of jaw (BRONJ). A 68-year-old female was recognized having a tooth at the left upper first molar fracture upon medicating bisphosphonate (BP) in 2007. At that time, the extraction of the tooth was an absolute contraindication. Therefore, we performed preservation therapy. We observed the symptoms and signs every month. After 5 months, swelling and redness in the entire first molar tooth were seen and fistula formed partly. Bone exposure was not seen. We administrated antibiotics immediately. As a result, symptoms disappeared. On April 10, 2009, the patient visited us as she felt a sense of incongruity in the lower left first and second molar teeth. Clinically, there were no symptoms of pain. However, we observed the radiolucent finding in about 5 mm diameter at apical position by X-ray photography; we considered a possibility of Stage 0 for BRONJ. We immediately administered medicine for 5 days and the symptoms disappeared. At present, no inflammation with signs and symptoms at the upper left first molar and lower left first, second molar parts is shown. We performed preservation therapy for tooth fracture case medicating of BP. Immediate responses for inflammation and symptoms of the Stage 0 of BRONJ have led to success. Hence, dentists should perform regular clinical observation, and enough education to the patient for BRONJ is necessary.

scholarly journals Radix Entomolaris in the Mandibular Molar Teeth of an Iranian Population

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Maryam Kuzekanani ◽  
Laurence J. Walsh ◽  
Jahangir Haghani ◽  
Ali Zeynali Kermani
Keyword(s):  
Root Length ◽  
Type I ◽  
Exact Test ◽  
Second Molar ◽  
Type Iii ◽  
Dental Clinics ◽  
Mandibular Molar ◽  
Molar Teeth ◽  
Distolingual Root ◽  
The Difference

Purpose. Supernumerary roots in permanent mandibular molar teeth make endodontic treatment more complicated. The aim of this study was to determine the prevalence of Radix Entomolaris (RE) in permanent mandibular first and second molars in the population of Kerman, in the southeast of Iran. Materials and Methods. From a collection of 500 mandibular first and second molar teeth extracted over 2015-2016 at dental clinics in Kerman, teeth were scored for an additional distolingual root, and the average root length and root morphology of this extra root were determined using the De Moor classification scheme. Results. In this population, RE occurred in 6% of mandibular first molars (4% with a straight apex (Type I) and 2% with buccal apical curvature (Type III)). In all cases, RE was the shortest root, with an average root length of 18.37 mm. RE occurred in only 0.8% of mandibular second molars, with an average root length of 18.0 mm. All mandibular second molars with RE were of Type III. Fisher’s exact test showed that the difference in frequency between first and second molars was statistically significant (two-sided P=0.002). Conclusion. Radix Entomolaris occurs more frequently in mandibular first molars than in mandibular second molars in this sample of 500 mandibular molars. The reported rate of 6% in first molars is expected to be higher than reported rates in European or Caucasian populations where the prevalence is typically less than 2%.

scholarly journals Root Canal Configuration of the Maxillary Second Permanent Molars in Pakistani Subpopulation

2021 ◽  
Vol 30 (03) ◽  
pp. 209-214
Author(s):  
Mansoor Khan Khan ◽  
◽  
Alia Ahmed ◽  
Muhammad Qasim Javed
Keyword(s):  
Root Canal ◽  
Dental Morphology ◽  
Cross Sectional ◽  
Second Molar ◽  
Morphological Variations ◽  
Molar Teeth ◽  
Permanent Molars ◽  
Root Canal System ◽  
International University

OBJECTIVE: The aim of the study is to assess the variations in the root canal configuration of maxillary second permanent molars in the Pakistani subpopulation by using different clinical aids in vivo. METHODOLOGY: The Cross-sectional analytical study was conducted from April to October 2018 at the College of Dentistry, Riphah International University, Pakistan. The root canal configurations of Maxillary second molars were evaluated in 95 adult patients that presented to the Operative Department, after obtaining consent. After access cavity preparation the orifices were identified and cross checked using 2.5x magnification and different clinical tests. Data analysis was done by utilizing SPSS version 23. RESULTS: Out of the 95 teeth 6(6.3%) teeth had a single canal, 7(7.4%) teeth had two canals, 58(61.1%) teeth had three canals and 24(25.3%) teeth had four canals. Age-wise analysis of the frequency of different canals showed that prevalence of molars with three canals was significantly higher in the subjects with age between 41 and 50 years. Conclusion: Overall, the study noted four morphological variations in the root canal configuration of Maxillary second molar teeth in Pakistani subpopulation. Hence, while executing the endodontic treatment in the maxillary second molars a thorough assessment of the root canal system should be carried out. The results of the study can guide Pakistani dentists. KEYWORDS: Permanent Maxillary second molar, Dental Morphology, Endodontics, Pakistan

scholarly journals MAXILLARY SECOND MOLAR

2018 ◽  
Vol 25 (07) ◽  
pp. 981-986
Author(s):  
Amira Shafqat ◽  
Bader Munir ◽  
Mustafa Sajid
Keyword(s):  
Root Canal ◽  
Local Population ◽  
Root Canal Treatment ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Second Molar ◽  
Root Canals ◽  
Single Root ◽  
Molar Teeth ◽  
Treat All

Introduction: It is important for a dental practitioner to have a clear understandingof the root canal morphology and its variations to perform successful root canal treatment.The inability to identify and adequately treat all canals of root canal system may contribute tothe failure of root canal treatment. Objectives: Clinically determine the frequency or numbersof root canals per tooth in the maxillary second molar teeth in the local population. Setting:Department of Operative Dentistry in Punjab Dental Hospital / de`Montmorency College ofDentistry, Lahore. Study Design: Randomized Control Trial. Study Period: 25th May 2013 to24th November 2013 (6 months). Results: This was a Cross sectional survey of 80 patients withsymptomatic irreversible pulpitis in maxillary second molar teeth in patients undergoing rootcanal treatment. The results showed that five (6.25%) patients had single root canal, seventeen(21.25%) patients had 2 root canals, forty (50%) patients had 3 root canals, seventeen (21.25%)patients had 4 root canals and one (1.25 %) patient had 5 root canals per tooth. In patientwith five canals, single root canal was present in distobuccal and palatal root each while threeroot canals were present in mesiobuccal root as MB-1, MB-2 and MB-3 canal. Conclusion:Local population have a lot of variations in root canal anatomy in second molar. So preclinicalknowledge can increase the success rate of root canal treatment.

scholarly journals Buccolingual Inclination of Canine and First and Second Molar Teeth and The Curve of Wilson in Different Sagittal Skeletal Patterns of Adults Using Cone-Beam Computed Tomography

2020 ◽  
Author(s):  
Amin Golshah ◽  
Navid Rezae ◽  
Sara Heshmati
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Class Ii ◽  
Class I ◽  
Cone Beam ◽  
Dental Arch ◽  
Cross Sectional ◽  
Second Molar ◽  
Molar Teeth ◽  
The Mean

Abstract Background: This study aimed to assess the buccolingual inclination of canine and first and second molar teeth and the curve of Wilson in different sagittal skeletal patterns in untreated adults using cone-beam computed tomography (CBCT). Methods: Sixty-six CBCT scans of adults (mean age: 28.74±5.25 years) were evaluated in this cross-sectional study. The images were standardized using the Frankfurt horizontal plane and the interorbital line. The sagittal skeletal pattern was determined using the ANB angle and Wits appraisal. Inclination angles were measured by NNT Viewer and Mimics software. The curve of Wilson was measured by connecting the tips of mesiobuccal and mesiolingual cusps of maxillary first and second molars along the buccal groove and measuring the formed angle. Data were analyzed using ANOVA. Results: The intraobserver agreement was 0.969. The mean inclination of maxillary first and second molars in class I and III patients was significantly higher than that in class II patients (P<0.05). The mean inclination of mandibular first and second molars in class II patients was significantly higher than that in class I and III patients (P<0.05). The difference in inclination of maxillary and mandibular canine teeth was not significant (P>0.05). The mean curve of Wilson in second molars of class II patients was significantly higher than that in class I patients (P<0.05). Conclusion: In different sagittal skeletal patterns, a compensatory relationship exists between the opposing teeth, which along with the standards of crowns, can be used to determine the appropriate position of teeth in dental arch.

scholarly journals C-Shaped Canal in Second Molar of Mandible among Cases of Cone Beam Computed Tomography in Tertiary Care Hospitals: A Descriptive Cross-sectional Study

2021 ◽  
Vol 59 (239) ◽  
Author(s):  
Neera Joshi ◽  
Suraj Shrestha ◽  
Sunanda Sundas ◽  
Kranti Prajapati ◽  
Sharada Devi Wagle ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Tertiary Care ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Sectional Study ◽  
Cross Sectional ◽  
Second Molar ◽  
Mandibular Second Molar ◽  
Tertiary Care Hospitals

Introduction: C-shaped canal configuration is mostly found in the mandibular second molar. The morphological characteristic of a C-shaped canal is the presence of a fin or web connecting the individual canal, making it difficult for cleaning, shaping, and obturation. The objective of this study was to find out the prevalence of C-shaped canal in mandibular second molar among cases of Cone Beam Computed Tomography in tertiary care hospitals. Methods: The descriptive cross-sectional study was conducted in the department of conservative dentistry and endodontics of tertiary care hospitals from 20th June 2020 to 20th December 2020 after receiving ethical approval from the Nepal Health Research Council on 19 June 2020. Cone-beam computed tomography images of 199 mandibular second molars with completely formed roots were used. Teeth with orthodontic braces, root resorption, root canal filling, and post were excluded from the study. The research was conducted taking a tooth as a unit. Convenience sampling was done. Statistical analysis was done by using Statistical Package for Social Sciences version 16. Point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data. Results: The prevalence of C-shaped canal according to this study is 25 (12.6%) (7.99-17.21 at 95% Confidence Interval). Conclusions: The findings of the study conclude that C-shaped configuration is quite frequent in mandibular second molar among cases of Cone Beam Computed Tomography. A careful pre-operative radiographic evaluation may be helpful for diagnosing C-shaped configuration prior to root canal treatment.

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