Stereographic assessment of mandibular canal in relation to the roots of impacted lower third molar using multiprojection narrow beam radiography

Tammisalo, T; Happonen, Risto‐Pekka; Tammisalo, E

doi:10.1016/s0901-5027(05)80538-7

Cited by 60 publications

(35 citation statements)

References 8 publications

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“…The stereo-scanograms consisted of a series of four images (stereo-scopic multiview), which displayed the third molar in one orthogonal and one disto-eccentric projection and two projections cranial to these. 9 In both directions the tube shift angle was 4 u . This technique allows for viewing with stereopsis, but also the tube-shift rule can be used.…”

Section: Radiographic Examinationmentioning

confidence: 96%

“…This technique allows for viewing with stereopsis, but also the tube-shift rule can be used. [9][10][11] Two CBCT units were used for the CBCT examinations, either the NewTom 3G (QR SRL, Verona, Italy; 83 third molars) or the Scanora 3D (103 third molars). In the NewTom scanner, the patients were examined with a 6-inch field of view (FOV) and in the Scanora 3D with a 666 cm FOV.…”

Section: Radiographic Examinationmentioning

confidence: 99%

“…[8][9][10] In stereo-scanograms the relation between the roots of the third molar and the mandibular canal can be determined by viewing with stereopsis or using the tube shift technique. 9,11 Cone beam CT (CBCT) has recently been introduced as a valuable diagnostic method in dentistry; 12,13 however, the present knowledge of the impact of CBCT on diagnosis and treatment decision as well as treatment outcome is limited. One study examined root resorption of the lateral incisor caused by an ectopically positioned canine and found that orthodontists' management decisions were not much influenced by CBCT compared with a panoramic image alone or intraoral images.…”

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confidence: 99%

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Influence of cone beam CT on treatment plan before surgical intervention of mandibular third molars and impact of radiographic factors on deciding on coronectomyvssurgical removal

Matzen¹,

Christensen²,

Hintze³

et al. 2013

Dentomaxillofacial Radiology

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Objectives: To assess the influence of cone beam CT (CBCT) on treatment plan before surgical intervention of mandibular third molars and to identify radiographic factors with an impact on deciding on coronectomy. Methods: 186 mandibular third molars with an indication for surgical intervention underwent a radiographic examination with two methods: (1) panoramic imaging in combination with stereo-scanography and (2) CBCT. After the radiographic examination a treatment plan (TP) was established: either surgical removal (Sr) or coronectomy (Co). The first TP was based on the panoramic image and stereo-scanogram, while the second TP was established after CBCT was available. Logistic regression analyses were used to identify factors predisposing for Co after CBCT. Results: Treatment was performed according to the second TP. Agreement between the first and second TP was seen in 164 cases (88%), while the TP changed for 22 teeth (12%) after CBCT. Direct contact between the third molar and the mandibular canal had the highest impact on deciding on Co [odds ratio (OR)5101.8, p , 0.001]. Direct contact was not a sufficient factor, however; thus, lumen narrowing of the canal (OR538.9-147.2, p , 0.001) and canal positioned in a bending or a groove in the root complex (OR532.8, p50.016) were additional canal-related factors for deciding on Co. Conclusion: CBCT influenced the treatment plan for 12%. Direct contact in combination with narrowing of the canal lumen and canal positioned in a bending or a groove in the root complex observed in CBCT images were significant factors for deciding on coronectomy. Dentomaxillofacial Radiology (

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Section: Radiographic Examinationmentioning

confidence: 96%

Section: Radiographic Examinationmentioning

confidence: 99%

mentioning

confidence: 99%

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Influence of cone beam CT on treatment plan before surgical intervention of mandibular third molars and impact of radiographic factors on deciding on coronectomyvssurgical removal

Matzen¹,

Christensen²,

Hintze³

et al. 2013

Dentomaxillofacial Radiology

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“…From a surgical perspective, the risk associated with dysaesthesia is determined by the approximation of the inferior alveolar nerve (IAN) or radiographically the proximity of the root of third molar to mandibular canal (MC). Literature shows many anatomical variation of the mandibular canal 10 . Because of this high variation in IAN/third molar relationship, a detailed pre-operative radiographic assessment is required to identify both the position and approximation of Mandibular Canal to third molar to minimize the risk of postoperative dysaesthesia.…”

Section: Discussionmentioning

confidence: 99%

Relationship between the Mandibular Third Molars with Inferior Alveolar Canal and associated Dysaesthesia

Prasant¹,

Fareedi²,

Sanghai³

et al. 2013

J Cont Med A Dent

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“…It begins at the mandibular foramen, runs obliquely downward and forward in the ramus, and then horizontally forwards in the body till mental foramen. 1 The portion anterior to mental foramen is referred as incisive canal. 2 The MC has an average diameter of 5 and 2.6 mm in the vertical and horizontal parts and usually present as a single large structure proximal to third molar region.…”

Section: Introductionmentioning

confidence: 99%

Bifid mandibular canal: an aberrant anatomic variation

Kumar

2017

J Dentomaxillofac Sci

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Objective: To review the literature and to present the report of a case with bifid mandibular canal. Methods: A cone-beam computed tomography scan with incidental finding of bifid mandibular canal was studied and presented in different sections. Results: The MC is a bilateral channel in the mandible that gives the passage to the inferior alveolar nerve, artery, and vein. It usually presents as a single canal where a variation in anatomy has been reported. The bifid mandibular canal is such an anatomic variant where it splits into two canals. Conclusion: The role of CBCT scans can be emphasized while performing procedures on posterior mandibular region, as it can provide the vital information regarding anatomical variation to avoid iatrogenic complication.

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Stereographic assessment of mandibular canal in relation to the roots of impacted lower third molar using multiprojection narrow beam radiography

Cited by 60 publications

References 8 publications

Influence of cone beam CT on treatment plan before surgical intervention of mandibular third molars and impact of radiographic factors on deciding on coronectomyvssurgical removal

Influence of cone beam CT on treatment plan before surgical intervention of mandibular third molars and impact of radiographic factors on deciding on coronectomyvssurgical removal

Relationship between the Mandibular Third Molars with Inferior Alveolar Canal and associated Dysaesthesia

Bifid mandibular canal: an aberrant anatomic variation

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