scholarly journals Correlation between maxillary sinus floor topography and relative root position of posterior teeth using Orthopantomograph and Digital Volumetric Tomography

2017 ◽  
Vol 8 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Chaithra Kalkur ◽  
Atul P Sattur ◽  
Kruthika S Guttal ◽  
Venkatesh G Naikmasur ◽  
Krishna Burde

Background: Maxillary sinus and its close proximity to the oral cavity make it a common clinical concern for medical and dental practitioners. Due to anatomical complexities, it is difficult to evaluate the relation between the root apices of maxillary posterior teeth and the floor of maxillary sinus which is essential for diagnosis of sinus pathology, understanding the path of dental infection and planning of dental treatment.Aims and Objectives: To correlate the topographic relationship of the maxillary sinus floor to the maxillary posterior teeth roots as imaged by pairs of Orthopantomograph (OPG) and Digital Volumetric Tomography images (DVT).Materials and Methods: A total of 510 maxillary teeth from 85 patients were classified according to their topographic relationship to the maxillary sinus and measured according to their projection lengths on the sinus cavity using OPG and DVT modalities.Results: In cases of classification 0, 85% and in classification 1 , 55.3% cases shows similar classification in both OPG and DVT. 28.5% of cases in both imaging modalities show classification 2. Only 15.9% of teeth roots exhibits classification 3. 11.1% of cases showed classification 4.The panoramic radiograph showed a statistically significant 2.24 times longer root projection on the sinus cavity in  OPG comparison to DVT images.Conclusion: Teeth roots projecting in to the sinus in OPG, shows no vertical protrusion in to the sinus in DVT images. Hence DVT was better than OPG with measurements that were more exact and closer to anatomical reality.Asian Journal of Medical Sciences Vol.8(1) 2017 26-31

2016 ◽  
Vol 28 (3) ◽  
Author(s):  
Aprilia Dian Pertiwi ◽  
Ria Noerianingsih Firman ◽  
Farina Pramanik

Introduction: Maxillary sinus floor is a part of the alveolar bone adjacent to the apex of the posterior maxillary teeth that often causes complications in dentistry. Anatomical relationship between the maxillary posterior tooth root and the maxillary sinus floor can be obtained by panoramic radiograph.  The purpose of this study is to analysis digital panoramic radiograph about positions root of maxillary posterior teeth’s with  maxillary sinus floor by age and gender using. Methods: Research method is descriptive with purposive sampling technique. Study population was taken from archives of patient’s digital panoramic radiograph in Radiography Installation from January to March 2016. 88 samples were obtained from 207 digital panoramic radiographs archives. Results: The result showed that type 3 was dominated by P1 (86.8% right, 88.2% left), type 2 is dominated by P2 (24.7% right, 21% left), type 1 is dominated by M2 in the right (31.2%) and M1 in the left (38.1%). Conclusion: This study concludes that overall, the most commonly found was type 3. Based on the age, type 1 majority occurs in age group of above 49 years old; type 2 in age group of 40-49 years old; and type 3 in age group 30-39 years old, 40-49 years old, and above 49 years old. By gender, type 1 and type 2 are more common in males, while type 3 is more common in female.


2016 ◽  
Vol 27 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Carlos Estrela ◽  
Carla A. B. C. M. Nunes ◽  
Orlando Aguirre Guedes ◽  
Ana Helena G. Alencar ◽  
Cynthia R. A. Estrela ◽  
...  

Abstract This study evaluated the anatomical relationship between posterior teeth root apices and maxillary sinus floor (MSF) on 202 cone beam computed tomography (CBCT) exams. The distance between the root apices and the MSF, as well as the MSF thickness of the cortical bone closest to root apices and furcation regions were measured. The vertical and horizontal relationships of the MSF with the molar roots were classified into categories adapted from the criteria proposed by Kwak et al. (14). The shortest distances between MSF and the root apices were observed in the mesiobuccal root of the second molar (0.36±1.17 mm) and the palatal root of the first molar (0.45±1.10 mm) and the widest in buccal roots of the first premolars (5.47±4.43 mm). Significant differences were observed between the distance of MSF to the root apices of single-rooted first and second premolars. The cortical thickness ranged from 0.65±0.41 mm over the mesiobuccal root of the second molar to 1.28±0.42 mm over the buccal root of the first premolar. The most observed vertical and horizontal relationships were type II and 2H, respectively. The maxillary molar roots showed greater proximity to the MSF. The thickness of the MSF cortical bone closest to the apices and furcation regions was found to be similar only for premolars.


2019 ◽  
Vol 47 (10) ◽  
pp. 4701-4710
Author(s):  
Xiaoli Hu ◽  
Lizhen Lei ◽  
Minyi Cui ◽  
Zhuwei Huang ◽  
Xiaolei Zhang

Objectives To investigate the periapical bone thicknesses of maxillary posterior teeth at the preferred level for root resection (3 mm apical to the root end) and to determine vertical distances from apex to maxillary sinus floor (MSF) using cone beam computed tomography (CBCT) scans. Methods CBCT scans were collected from 341 subjects (2389 teeth). Associations of bone thicknesses and vertical distances with age and sex were determined by one-way analysis of variance. Results At the level of root-end resection, buccal bone was the thickest over the mesiobuccal roots of second molars (mean, 2.99 mm) and thinnest over the double-root first premolars (mean, 0.29 mm). In maxillary posterior teeth, thicker buccal bone was found in men than in women. The mesiobuccal roots of second molars were nearest to the MSF (mean, 1.33 mm), and were also most frequently extended into the sinus cavity (15.81%). Subjects more than 40 years of age had larger vertical distances from root apices to MSF in the molar region, compared with younger subjects. Conclusions Generally, periapical bone was thicker in men, and root apices were located nearer to the MSF in younger subjects. Age and sex should be considered before endodontic microsurgery.


2021 ◽  
Author(s):  
Aqeel Al-Saedi ◽  
Riad Al-Taee ◽  
Bahaa Al-Bakhakh

Abstract Background: This present study aims to evaluate the type of relationship between roots of maxillary posterior teeth and maxillary sinus.Methods: Cone beam computed tomography images for 148 patients were evaluated (62 males Vs 86 females). A total of 1052 teeth were examined (518 maxillary premolars and 534 maxillary molars). The relation between roots tips and maxillary sinus floor were classified into four types: type 0, type 1, type 2 and type 3, vertical linear distance was measured and distribution of type of relationship in different age groups were evaluated.Results: Most of single rooted maxillary premolars showed (type 0) relationship with maxillary sinus floor (98.1%) for maxillary first premolars and (69.5%) for maxillary second premolars. In buccal roots of double rooted maxillary first premolars, (type 0) represented (98.7%). While for maxillary second premolars occurred in (50%). Type 0 still the most common appearing type in palatal roots of maxillary first premolars (92%) and in maxillary second premolars it appeared in (45.8%). In maxillary first molars, (type 0) was the most common type which appeared in 43.3%, 39.8% and 38.6% for mesiobuccal, distobuccal and palatal roots respectively. The most common appearing type in single rooted and double rooted maxillary second molars, (type 0) appeared in (50%). In mesiobuccal and distobuccal roots (type 1) appeared in 48.1% and 45.5%, respectively (most common), whereas (type 0) was seen most frequently in palatal roots (39.7%). There was increased appearance of (type 0) in older age group (>45) in maxillary molars roots with statistically significant difference (P-value < 0.001).Conclusions: Most of maxillary premolars, maxillary first molars and palatal roots of maxillary second molars were separated from maxillary sinus floor (type 0). Most of the mesiobuccal and distobaccal roots of maxillary second molars were in contact with the sinus floor (type1).


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