Maxillary molar root protrusion into the maxillary sinus: a comparison of cone beam computed tomography and panoramic findings

Themkumkwun, Sukkarn; Kitisubkanchana, Jira; Waikakul, Aurasa; Boonsiriseth, Kiatanant

doi:10.1016/j.ijom.2019.06.011

Cited by 26 publications

(30 citation statements)

References 19 publications

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“…18,[23][24][25][26][27][28] Other studies reported that the palatal root of the first molar most frequently protruded into the sinus. 19,[29][30][31][32] Our results revealed that the type 3 (root protrusion into the sinus) configuration occurred most frequently in the mesiobuccal root of maxillary second molars (48.4%), while type 2 occurred most frequently in the palatal root of maxillary first molars (43.1%). Previous studies have reported that the palatal roots of second molars exhibited the lowest incidence of protrusion into the sinus.…”

Section: Discussionmentioning

confidence: 99%

“…13,14 Several studies have compared the relationship of the sinus floor to the roots on panoramic radiographs with CBCT images. [15][16][17][18][19] When panoramic radiographs showed a distinct distance between the roots and the sinus, it was found to be unnecessary to order CBCT. 20 However, there was significant disagreement between panoramic radiographs and CT or CBCT images when the panoramic radiograph showed root protrusion into the sinus.…”

Section: Introductionmentioning

confidence: 99%

“…22 In previous studies, some instances of root protrusion into the sinus shown on panoramic radiographs were actually shown to be located laterally or medially to the sinus on CBCT images. [15][16][17][18] Lopes et al 18 and Themkumkwun et al 19 investigated panoramic radiographic signs indicating actual protrusion of the roots into the maxillary sinus. They attempted to offer decision-making criteria regarding the need for CBCT scans before treatment planning in the posterior maxilla.…”

Section: Introductionmentioning

confidence: 99%

“…They attempted to offer decision-making criteria regarding the need for CBCT scans before treatment planning in the posterior maxilla. 18,19 The purpose of this study was to investigate correlations between findings on panoramic radiography and CBCT for evaluating the relationship between the maxillary sinus floor and the roots of maxillary posterior teeth. In addition, radiographic signs indicating actual root protrusion into the maxillary sinus were evaluated on panoramic radiographs.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of panoramic radiography and cone-beam computed tomography for assessing radiographic signs indicating root protrusion into the maxillary sinus

Jung

Hwang

2020

Imaging Sci Dent

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of panoramic radiography and cone-beam computed tomography for assessing radiographic signs indicating root protrusion into the maxillary sinus

Jung

Hwang

2020

Imaging Sci Dent

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“…In their study, two oral and maxillofacial radiologists evaluated OPG and CBCT images and as a result of this study OPG shows similar performance compared with CBCT in the classification of impaction. Themkumkwun et al (2019) conducted a study to determine correlation between Panoramic and CBCT images in terms of upper molar root protrusion into the maxillary sinus and they highlighted that there was a respective correlation between two imaging methods. In a study evaluating the relationship between IAN and impacted lower molar roots in terms of OPG and CBCT imaging methods, it was reported that CBCT was more effective in evaluating the relationship of these anatomical structures (Nirmalendu et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Planning of Large Odontogenic Cysts Treatment Using Panoramic and CBCT Images.

Yanık¹,

Polat

2020

Middle Black Sea Journal of Health Science

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Objective: We explored the utility of Cone Beam Computed Tomography (CBCT) and Orthopantomography (OPG) in terms of treatment planning to determine which form of radiography can more reliably assess cyst volume. Methods: 'We evaluated the panoramic and CBCT images of nine patients who consulted our clinic for treatment of large cystic lesions. Overall, 27 images were reviewed and analyzed by 21 oral and maxillofacial surgeons. We asked five questions (detailed in the main text). Results: We evaluated the 189 answers in the questionnaire. The surgeons recommended marsupialization followed by enucleation, marsupialization, and enucleation (70.89 %, 14.28 %, and 14.81 %, respectively). The answers to the reasons of these treatment choices showed that the size of the cysts and relationship with the adjacent anatomical structures are the most effective factors. In after marsupialization challenges, 85.71% of the answers considered that the lesion had shrunk sufficiently to allow enucleation according to OPG's, however, this rate decreased to 42.23% when the same surgeons evaluated the CBCT images of the patients after marsupialization. Ninety-nine percent of the responses reported that CBCT was much more reliable than OPG. Conclusion: In this study, we concluded that OPG imaging method can be used for the diagnosis and followup of cystic lesions, but in order to determine the accuracy of timing, adequacy of new bone formation and whether the cyst has shrunk sufficiently in volume, during the transition from the marsupialization process to the enucleation process, it is necessary to use CBCT imaging method. Further clinical trials should be conducted to define the effects of three dimensions images regarding surgical treatments of different kinds of oral and maxillofacial region cystic lesions.

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Evaluation of clinical and radiographic warning signs for prediction of oroantral communication following tooth extractions

Jurásek,

Farkas,

Frank

et al. 2024

Clin Oral Invest

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Objectives Oroantral communication (OAC) is a relatively common and mild complication of maxillary tooth extractions. Preoperative prediction of OAC can reduce treatment duration and prepare both operators and patients for the procedure. This study aims to identify alarming radiographic and clinical indicators that can predict OAC therefore assisting clinical decision making to practicing general dentists. Methods In this retrospective case–control study the OAC group consisting of 97 cases and a control group twice the size was established. Clinical data were collected, and measurements were conducted separately by two blinded observers on digital panoramic radiographs. Inter-rater reliability was assessed. In case of disagreement a third observer’s results were utilized. The correlation between OAC and demographic data (age, sex), as well as various factors assessed on panoramic radiographs (including, but not limited to, the length of the root, root projection into the sinus, bone width, presence of mesial and distal adjacent teeth), was statistically evaluated. Results Inter-rater reliability was found to be excellent. Several factors were identified as potential predictors of OAC. According to our model, the strongest predictors were the distance between the cemento-enamel junction and marginal bone, extent of root projection into the sinus, presence of sinus recess around the roots, angulation, and absence of the mesial adjacent tooth. Conclusions Well-defined measurements on panoramic radiographs may aid in predicting OAC. Further prospective investigations are necessary to confirm these indicators and address factors related to clinical examination and operation. Clinical relevance We present several clinical and radiographic warning signs of OAC that can facilitate pre-extraction decision-making.

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Maxillary molar root protrusion into the maxillary sinus: a comparison of cone beam computed tomography and panoramic findings

Cited by 26 publications

References 19 publications

Comparison of panoramic radiography and cone-beam computed tomography for assessing radiographic signs indicating root protrusion into the maxillary sinus

Comparison of panoramic radiography and cone-beam computed tomography for assessing radiographic signs indicating root protrusion into the maxillary sinus

Planning of Large Odontogenic Cysts Treatment Using Panoramic and CBCT Images.

Evaluation of clinical and radiographic warning signs for prediction of oroantral communication following tooth extractions

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