Impacted mandibular third molars and their influence on mandibular angle and condyle fractures

Gaddipati, Rajasekhar; Ramisetty, Sudhir; Vura, Nandagopal; Kanduri, Rajeev Reddy; Gunda, Vinay Kumar

doi:10.1016/j.jcms.2014.01.038

Cited by 36 publications

(23 citation statements)

References 15 publications

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“…Determinants such as direction, severity and impact of force, the presence of soft-tissue bulk, occlusal loading pattern, biomechanical characteristics such as bone density mass, and anatomic structures creating weak areas are accountable for mandibular fractures to occur. 6,10 Many studies have been put forth proving the increased risk of mandibular angle fractures due to the presence of an impacted third molar; however, there is scanty evidence and low emphasis on the distribution of angle and condyle fractures on the basis of age of the patient, sex, etiology of the trauma, presence and position of third molar, and development of roots. 6,11,12 In our study, gender of the patient was considered a variable, as all the patients who were operated from 2010 to 2017 were taken into consideration.…”

Section: Discussionmentioning

confidence: 99%

Mehra

Anehosur

Kumar

2019

Craniomaxillofacial Trauma & Reconstruction

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The aim of this study is to retrospectively analyze the effect unerupted or partially erupted third molars have on the angle and condyle fracture patterns of the mandible. It also focuses on evaluating the type of impaction that causes angle fracture and the level at which the condyle most commonly fractures. The study involves all the patients who had undergone treatment for condylar and angle of the mandible fractures from 2010 to 2017 in our craniofacial center. The case records and orthopantomograms of each patient were taken into consideration and a correlation was established based on gender, age, etiology, presence of third molars, position of third molars, angulation, and root development of third molars. Of the 150 angle fracture patients, 146 had third molars and 4 did not, whereas of the 130 condyle fractures, third molar was present in 54 patients and absent in 76. The prevalence of angle fractures was statistically significant when a third molar was present, whereas the prevalence of condyle fractures was higher when third molar was absent. The results of age, etiology, angulation, position, and root development of third molars were also statistically significant. However, sex of the patient did not influence the fracture pattern. The presence of an impacted third molar or a completely erupted one has a definite influence on the fracture pattern of the mandible. The occurrence of angle and condyle fractures was mostly affected by the continuity of the cortical bone at the angle of the mandible. Hence, prophylactic removal of mandibular third molars does increase the risk of condyle fractures.

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Section: Discussionmentioning

confidence: 99%

Impacted Mandibular Third Molars and Their Influence on Mandibular Angle and Condyle Fractures

Mehra

Anehosur

Kumar

2019

Craniomaxillofacial Trauma & Reconstruction

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“…Several studies have reported that patients with impacted mandibular M3s are more likely to have an angle fracture than patients without impacted mandibular M3s [1,2,[9][10][11][12][13]. A possible explanation for this relationship is that an impacted M3 weakens the mandible by occupying the osseous space and decreases the quantity of bone and cross-sectional bone area, thereby weakening the mandibular angle area [14].…”

Section: Discussionmentioning

confidence: 99%

“…There were several studies investigating the relevance of M3 position and mandible fracture pattern; however, the conclusions were diverse. Gaddipati et al [10] reported that the risk of mandibular angle fractures are highest in class IIA. Fuselier et al [5] concluded that angulation and vertical position of the M3 has relevance to angle fracture, with mesioangulation being more common in angle fracture patients.…”

Section: Discussionmentioning

confidence: 99%

Relationship between mandible fractures and third molars

Lee

Kim

Lee

et al. 2019

Arch Craniofac Surg

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Background: This study was conducted to determine the relationship between third molar (M3) and mandibular fracture. Methods: Patients with unilateral mandibular angle or condyle fractures between 2008 and 2018 were evaluated retrospectively. Medical records were reviewed regarding the location of fractures, and panoramic radiographs were reviewed to discern the presence and position of ipsilateral mandibular third molars (M3). We measured the bony area of the mandibular angle (area A) and the bony area occupied by the M3 (area B) to calculate the true mandibular angle bony area ratio (area A-B/area A × 100). Results: The study consisted of 129 patients, of which 60 (46.5%) had angle fractures and 69 (53.5%) had condyle fractures. The risk of angle fracture was higher in the presence of M3 (odds ratio [OR], 2.2; p < 0.05) and the risk of condyle fracture was lower in the presence of M3 (OR, 0.45; p < 0.05), than in the absence of M3. The risk of angle fracture was higher in the presence of an impacted M3 (OR, 0.3; p < 0.001) and the risk of condyle fracture was lower in the presence of an impacted M3 (OR, 3.32; p < 0.001), than in the presence of a fully erupted M3. True mandibular angle bony area ratio was significantly lower in the angle fractures than in the condyle fractures (p = 0.003). Conclusion: Angle fractures had significantly lower true mandibular angle bony area ratios than condyle fractures. True mandibular angle bony area ratio, a simple and inexpensive method, could be an option to predict the mandibular fracture patterns.

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“…1 The impacted position can be horizontal, vertical, mesioangular, distoangular, buccolingual, or inverted. 2 Shiller stated that when the angle between the mandibular occlusal plane and the occlusal plane of the third molar is between 11° and 70°, the tooth position is mesioangular. 3 Mesioangular and horizontal positions are more frequently associated with pathological conditions.…”

Section: Introductionmentioning

confidence: 99%

The Relationship Between the Slope of the Mesioangular Lower Third Molars and the Presence of Second Molar Distal Caries: A Retrospective Study

Altan

Soylu²

2018

Cumhuriyet Dental Journal

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Objective: The purpose of this study was to examine the relationship between the degree of mesioangular mandibular third molar teeth and the presence of distal caries in the second molar teeth. Materials and Methods: In this retrospective study, panoramic radiographs of 617 patients (328 females, 289 males) with impacted teeth in partially erupted mesioangular position were examined. The angle between the mandibular occlusal plane and the occlusal surface of the mandibular third molar was measured. Third molar teeth in mesioangular positions with an angle between 11° and 30° were classified as Group 1, an angle between 31° and 50° as Group 2, and an angle between 51° and 70° as Group 3. For each group, the presence of caries in the distal contact point of adjacent second molar teeth was detected. Results: A total of 816 mandibular third molar teeth in the mesioangular position were analyzed. Of these, 439 (53.8%) were in females and 377 (46.2%) were in males. The prevalence of caries in the distal aspect of the second molar teeth was 34.5% in males and 21.4% in females (p<0.001). A statistically significant difference was found between the groups (p<0.05). The results showed that a slope of 51° to 70° in mandibular third molar presents a higher risk for caries formation in the distal aspect of second molar teeth. Conclusions: Early prophylactic extraction of impacted mandibular teeth with a slope between 51° and 70° may prevent caries formation in the distal aspect of adjacent second molar teeth.

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Impacted mandibular third molars and their influence on mandibular angle and condyle fractures – A retrospective study

Cited by 36 publications

References 15 publications

Impacted Mandibular Third Molars and Their Influence on Mandibular Angle and Condyle Fractures

Impacted Mandibular Third Molars and Their Influence on Mandibular Angle and Condyle Fractures

Relationship between mandible fractures and third molars

The Relationship Between the Slope of the Mesioangular Lower Third Molars and the Presence of Second Molar Distal Caries: A Retrospective Study

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