Mandibular third molar and inferior alveolar canal

Nagaraj, M.; Chitre, AP

doi:10.1007/s12663-009-0057-0

Cited by 6 publications

(6 citation statements)

References 20 publications

(33 reference statements)

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“…The pain may be due to the type of impaction, or any pathological growth or condition 1,35 . Similar results showed in the study conducted by Seidu A Bello et al 2011 , and Nagaraj T et al 2016 36,32 . In our study nearly 11.82% of the population had a history of Diabetes mellitus and hypertension etc .…”

Section: Resultssupporting

confidence: 86%

“…This supports the assertion that there are sex-specific mandibular traits with the sexual dimorphism , clearly observed with bigger jaw bone in males 31 . Similarly , the study conducted by Nagaraj T et al 2016, reported that males had higher impaction than females 32 . But contradictory result was found in the study conducted by Korener et al 2015 , stated that the possibility of dietary influence on the physique , role of genetic factors or a combination of genetic and dietary factors have been proposed to have effect on low prevalence of unerupted / impacted third molar this may be the reason for fewer number of males presented compared to females 33,34 .…”

Section: Resultsmentioning

confidence: 80%

“…Only ( 1.69%) of the patients presented with swelling . The study done by Nagaraj T et al 2016, presented that swelling was associated in most of the cases and the root cause for wisdom teeth swelling is a natural response by the body ,when injured or any infection , so the body wants to bring oxygen rich blood , red blood cells and necessary nutrients to the affected area 32 .…”

Section: Resultsmentioning

confidence: 99%

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Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

2020

IJFMT

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The term unerupted / impacted teeth defines a failure of the tooth to erupt within the expected time into the dental arch. Impaction is a common dental anomaly where the tooth has not erupted beyond the eruption period. The incidence of unerupted / impacted teeth differs among different populations and in different ethnic groups. The aim of this study was to assess the prevalence of unerupted/ impacted teeth among patients of 18-25 years of age visiting Private Dental college and hospital, Chennai. This is a descriptive study which is performed under a university setting where all the patients reported to Private Dental college and hospital, chennai. The data was collected by reviewing patients records and analysed the data of 86000 patients who underwent extraction between June 2019 to March 2020. The population size of the study was found to be n=296 .Data was collected , tabulated ,statistical analysis was done by SPSS -IBM.( Statistical Package for Social Studies ). From the statistical analysis, it is observed that the total number of extraction done between 18-25 years was found to be n=7339 (96%) out of which only n= 295 (4%) was found with an incidence of impaction. The overall prevalence of unerupted/ impacted teeth were higher in males(55.74%) predominantly between the age groups of 24 years (18.8%) and was commonly reported to third molars (41.9%). Within the limitation of the current study, it is found that unerupted / impacted teeth are more common among 24 years of age with male predilection with higher incidence of mandibular molars.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 80%

Section: Resultsmentioning

confidence: 99%

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Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

2020

IJFMT

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“…1 The impacted third molars unless surgically removed are retained throughout the life -time of a person and are thus prone to further complications like pericoronitis, cyst and tumor formation from the developmental remnants, neuralgic pain related to the inferior alveolar canal impingement, alteration in occlusion, masticatory dysfunction, and temporomandibular joint disorders in the long run. 2 Removal of the impacted third molars is considered prophylactically or when associated with pathology. Deferring the procedure is related to comorbidities.…”

Section: Introductionmentioning

confidence: 99%

Prediction of nerve damage by comparing periapical radiographic signs of impacted mandibular third molars in close proximity to inferior alveolar nerve with their true tomographic relationship – An observational study

Remulla

Koneru²,

Tatapudi³

et al. 2021

IJMI

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The purpose of the study was to correlate the accuracy of Roods and Shehab signs in an intraoral periapical radiograph (IOPAR) with Cone-beam computed tomography (CBCT) findings to indicate Cone-beam computed tomography only in high-risk conditions.70 impacted mandibular third molar teeth in 58 patients above 18 years with intraoral periapical radiographs presenting with one or more root and canal signs of Rood and Shehab criteria were included in the study. Winter's classification was recorded, and the patients were exposed to a Cone-beam computed tomographic scan. True canal – tooth relationship was assessed in the sectional images. Pearson Chi-square test was used to correlate periapical radiograph and tomographic findings, and an unpaired t-test was applied for descriptive analysis.Rood and Shehab canal criteria in the periapical radiographs were significantly correlated to direct contact of an impacted lower third molar with the canal (p< 0.05) and loss of cortication of Mandibular canal (p< 0.05) on the cone-beam computed tomography. Cone-beam computed tomography is recommended to assess the periapical radiographs with canal risk markers pre-operatively to help avoid iatrogenic complications.

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“…6 The Inferior Alveolar Nerve runs in ID (Inferior Dental) canal which is usually near to apices of mandibular third molar, if third molars are impacted so their roots are present close to nerve. 7,8 On routine clinical examination impacted mandibular third molar are commonly seen and they are in close relation to the lingual and inferior alveolar nerve, during surgical extraction these nerves can be damaged. 5,9,10 In a literature review seven radiographic indicators of a close relationship between inferior dental canal and impacted third molar are observed , four signs are seen in the root of tooth (darkening, deflection, narrowing and bifid root apex) and the other three are seen in inferior dental canal (diversion, narrowing and interruption in the canal).…”

Section: Introductionmentioning

confidence: 99%

Inferior alveolar nerve injury assessment after surgical removal of mandibular third molar.

Bhangwar¹,

Khan

Fatima

et al. 2020

TPMJ

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To assess the nerve injury (inferior alveolar nerve) after surgical removal of mandibular third molars under local anesthesia. Study Design: Observational study. Setting: Oral & Maxillofacial Surgery Department LUMHS Jamshoro/Hyderabad. Period: From 11th November 2015 to 10th May 2016. Material & Methods: This study consisted of one hundred patients. Inclusion criteria’s were patients with impacted mandibular third molar, patient’s age from 18 to 45years and irrespective of gender. Exclusion criteria were patients younger than 18yrs of age of above 45 years, patients having neurological disorders, medically compromised patients, patients receiving radiotherapy or chemotherapy, patients with known allergy to local anesthesia, patients having pathology due to mandibular third molars, patients radiographicaly root is very near to inferior dental canal. Results: Out of 100 patients incorporated in this research 66 were male (66%) and 34 female (34%). The mean age was 29+3.20 years. Common indication of extraction were recurrent pericoronitis 52(52%) cases followed by deep caries/ pulpitis in 28(28%) cases, orthodontic reason in 11(11%) cases and caries to adjacent tooth in 9(9%) cases. Third molar impaction according to winter’s classification were Mesioangular in 54(54%) cases followed by Horizontal in 26(26%) cases and Vertical in 11(11%). Radiographic showed Narrowing of root in 21% cases and narrowing of inferior dental (ID) canal 20% cases, followed by diversion of ID canal in 16 % cases, deflection of root 14 % cases and darkening of root in 11% cases. After surgical removal of mandibular third molar, the inferior alveolar nerve injury was observed in 6(6%) cases. Conclusion: We conclude that inferior alveolar nerve paresthesia occurs in 6% after surgical removal of mandibular third molars.

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Mandibular third molar and inferior alveolar canal

Abstract: For IAN we found Patient's age, the development of roots, the degree of impaction and the radiographic position of the nerve canal to be significantly correlated to sensory deficit.

Cited by 6 publications

References 20 publications

Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

Prediction of nerve damage by comparing periapical radiographic signs of impacted mandibular third molars in close proximity to inferior alveolar nerve with their true tomographic relationship – An observational study

Inferior alveolar nerve injury assessment after surgical removal of mandibular third molar.

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