Chronic sinusitis of odontogenic origin due to an undiagnosed displaced root fragment in the maxillary sinus and the role of cone beam computed tomography in successful management

Abstract Background The proximity of the maxillary sinus floor to the maxillary molar roots increases the probability of oroantral communication on conducting any surgical or endodontic procedure in the involved area. The aim of this study is to evaluate the relationship between each maxillary molar root and maxillary sinus floor using cone beam computed tomography. Predicting the probability of protrusion of each root into the sinus will consequently predict the probability of occurrence of the oroantral fistula in a sample of the Egyptian population. Results The total number of roots located outside the sinus was 121 (35.3%), while those contacting the sinus floor were 80 (23.3%) and those intruded the sinus were 141 (41.2%). The percentage of root intrusion into the sinus in males (56.9%) was significantly (p = 0.01) higher than females (42.9%). The probability of root intrusion in the left molars (54.2%) was non-significantly (p = 0.067) higher than that of the right side (44.3%). As for the type of tooth, the second molar showed the highest probability of root intrusion into the sinus (55.3%) followed by the third molars (52.6%) then the first molars (40.9). According to the type of root, the mesiobuccal root showed the highest probability of intrusion into the sinus (50.9%) followed by the palatal root (49.1%) then the distobuccal root (47.4%). However, the difference in both type of tooth and type of root was statistically non-significant (p = 0.051 and 0.869 respectively). As for the individual root with the highest probability of intrusion, the mesio-buccal root of the right third molar is the most frequent root to intrude the sinus (71.4%) and the mesio-buccal root of the right first molar is the least frequent (22.7%). Conclusions In a sample of the Egyptian population, males exhibit higher probability of root protrusion into the sinus than females. The side and type of tooth are of higher impact on the probability of its intrusion into the sinus compared to the type of root. Left second molars are at a higher risk of oroantral communications on surgical or endodontic procedures compared to other molars due to its highest probability of intrusion into the sinus.

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Proximity of Posterior Teeth to the Maxillary Sinus and Buccal Bone Thickness: A Biometric Assessment Using Cone-beam Computed Tomography

Journal of Endodontics ◽

10.1016/j.joen.2015.08.011 ◽

2015 ◽

Vol 41 (11) ◽

pp. 1839-1846 ◽

Cited By ~ 26

Author(s):

Sung Hyun Kang ◽

Bom Sahn Kim ◽

Yemi Kim

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Bone Thickness ◽

Posterior Teeth

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Correlation of cone beam computed tomography (CBCT) findings in the maxillary sinus with dental diagnoses: a retrospective cross-sectional study

Clinical Oral Investigations ◽

10.1007/s00784-011-0620-1 ◽

2011 ◽

Vol 16 (4) ◽

pp. 1023-1029 ◽

Cited By ~ 38

Author(s):

Dan Dominik Brüllmann ◽

Irene Schmidtmann ◽

Silke Hornstein ◽

Ralf K Schulze

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Cross Sectional Study ◽

Cone Beam ◽

Sectional Study ◽

Cross Sectional

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Does hyrax expansion therapy affect maxillary sinus volume? A cone-beam computed tomography report

Imaging Science in Dentistry ◽

10.5624/isd.2012.42.2.83 ◽

2012 ◽

Vol 42 (2) ◽

pp. 83 ◽

Cited By ~ 12

Author(s):

Drew M. Darsey ◽

Jeryl D. English ◽

Chung H. Kau ◽

Randy K. Ellis ◽

Sercan Akyalcin

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Maxillary Sinus Volume

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The Role of Cone-Beam Computed Tomography in Diagnostics of Cystic Masses of the Jaw

Medical Visualization ◽

10.24835/1607-0763-2017-3-14-19 ◽

2017 ◽

pp. 14-19

Author(s):

M. A. Batova

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Panoramic Radiography ◽

Cone Beam ◽

Incisive Canal ◽

Computed Tomographic ◽

Cystic Masses ◽

Cbct Analysis ◽

Tomography Analysis

Research objective. The study aimed to evaluate cone-beam computed tomography (CBCT) capabilities in diagnostics of cystic masses of the jaw.Methods. Over a period of 2015–2016 32 patients age 6 to 67 underwent both panoramic tomography and CBCT (using panoramic tomographic scanner STRATO 2000 and cone-beam computed tomographic scanner i-Cat respectively). 47% (n = 15) of the participants were women, 53% (n = 17) – men. Radiation exposure for a single procedure amounts to 0,05 mSv for panoramic tomography, 0,07 mSv for CBCT (FOV =13 cm), 0,06 mSv for CBCT (FOV =8 cm).Results. Comparative analysis of obtained results demonstrates that CBCT showed 54% (n = 27) more cystic masses of the jaws than panoramic radiography could. CBCT additionally showed the following pathologies: granulomas smaller than4 mm diameter – 85% (n = 23), 83% (n = 23) of said granulomas were found on maxilla, radicular cysts of maxilla – 11% (n = 3), incisive canal cyst – 4% (n = 1). Additionally panoramic tomography analysis misdiagnosed 5 granulomas (80% (n = 4) on mandibular premolar and molar areas) that were not found during CBCT analysis.Conclusion. The low effective dose and high informativity of CBCT enables the method to be used instead of intraoral radiography, panoramic tomography and MSCT as a screening procedure in diagnostics of dento-facial system pathologies, including cystic masses of the jaw.

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