Topographic anatomy of the inferior wall of the maxillary sinus in Koreans

Kwak, Hyun Ho; Park, H. D.; Yoon, Hae Sang; Kang, Min Kyu; Koh, Ki Seok; Kim, H. J. K.

doi:10.1016/j.ijom.2003.10.012

Cited by 142 publications

(164 citation statements)

References 7 publications

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“…Therefore, recent studies have focused on using CT (4,12,13) or cone-beam computed tomographic (CBCT) imaging (14)(15)(16)(17)(18) for assessing the proximity between the roots and the sinus floor.…”

mentioning

confidence: 99%

Proximity of Premolar Roots to Maxillary Sinus: A Radiographic Survey Using Cone-beam Computed Tomography

Arx

Fodich

Bornstein

2014

Journal of Endodontics

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Introduction: The proximity of the roots of the posterior maxillary teeth to the maxillary sinus is a constant challenge to the dental practitioner. Because the majority of studies have assessed the relationship regarding molars, the present study focused on premolars. Methods: Cone-beam computed tomographic images of 192 patients were reconstructed in sagittal, coronal, and axial planes to quantify the distances between the root apices of the maxillary premolars and the adjacent maxillary sinus. Measurements were taken for each root, and data were correlated with age, sex, side, and presence of both or absence of 1 of the 2 premolars. Results: A total of 296 teeth (177 first and 119 second premolars) were evaluated. The mean distances from buccal roots of the first premolars to the border of the maxillary sinus in the sagittal, coronal, and axial planes ranged from 5.15 AE 2.99 to 8.28 AE 6.27 mm. From palatal roots, the mean distances ranged from 4.20 AE 3.69 to 7.17 AE 6.14 mm. The mean distances of second premolars were markedly shorter in buccal roots between 2.32 AE 2.19 and 3.28 AE 3.17 mm and in palatal roots between 2.68 AE 3.58 and 3.80 AE 3.71 mm, respectively. The frequency of a premolar root protrusion into the maxillary sinus was very low in first premolars (0%-7.2%) but higher in second premolars (2.5%-13.6%). Sex, age, side, and presence/absence of premolars failed to significantly influence the mean distances between premolar roots and the maxillary sinus. Conclusions: Based on the calculated mean distances of the present study, only few premolars (and if so second premolars) would present a risk of violating the border of the maxillary sinus during conventional or surgical endodontic treatment or in case of tooth extraction. (J Endod 2014;40:1541-1548

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mentioning

confidence: 99%

Proximity of Premolar Roots to Maxillary Sinus: A Radiographic Survey Using Cone-beam Computed Tomography

Arx

Fodich

Bornstein

2014

Journal of Endodontics

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“…Freisfeld et al [28] suggested a classification applicable for both panoramic images and CT scans based on the first molar. Kwak et al [16] suggested an elaborate classification for the vertical relationship of the tooth root apex on CT scans and the results were compared to histological findings. They found that the inferior wall of the sinus was located above the level connecting the buccal and lingual roots apices in the first and second molars region in 54.5% and 52.4% of cases respectively.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, it has been shown in surveys, that up to 95% of dentists refer their patients solely for an OPG scan before implant placement with only a relatively small number of referrals for a CT scan [10,11]. It is interesting to know, that several studies assessed the vertical and horizontal relationship between the tooth root apex and the inferior wall of the maxillary sinus using CT diagnostic method [12][13][14][15][16]. It was concluded that CT is more accurate than OPG in assessing the tooth root and sinus relationship [17].…”

Section: Introductionmentioning

confidence: 99%

Reliability of Periapical Radiographs and Orthopantomograms in Detection of Tooth Root Protrusion in the Maxillary Sinus: Correlation Results with Cone Beam Computed Tomography

Hassan

2010

JOMR

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Objectives:The purpose of the present study was to investigate the reliability of both periapical radiographs and orthopantomograms for exact detection of tooth root protrusion in the maxillary sinus by correlating the results with cone beam computed tomography. Material and methods: A database of 1400 patients scanned with cone beam computed tomography (CBCT) was searched for matching periapical (PA) radiographs and orthopantogram (OPG) images of maxillary premolars and molars. Matching OPG images datasets of 101 patients with 628 teeth and PA radiographs datasets of 93 patients with 359 teeth were identified. Four observers assessed the relationship between the apex of tooth root and the maxillary sinus per tooth on PA radiographs, OPG and CBCT images using the following classification: root tip is in the sinus (class 1), root tip is against the sinus wall (class 2) and root tip is not in the sinus (class 3). Results: Overall correlation between OPG and CBCT images scores was 50%, 26% and 56.1% for class 1, class 2 and class 3, respectively (Cohen's kappa [weighted] = 0.1). Overall correlation between PA radiographs and CBCT images was 75.8%, 15.8% and 56.9% for class 1, class 2 and class 3, respectively (Cohen's kappa [weighted] = 0.24). In both the OPG images and the PA radiographs datasets, class 1 correlation was most frequently observed with the first and second molars. Conclusions:The results demonstrated that both periapical radiographs and orthopantomograms are not reliable in determination of exact relationship between the apex of tooth root and the maxillary sinus floor. Periapical radiography is slightly more reliable than orthopantomography in determining this relationship.

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“…[5] Therefore, it seems clear that a thorough assessment of maxillary sinus topography is paramount whenever dental implants, extractions, endodontic therapy and orthodontics are considered in the posterior maxilla. [6] Tooth roots that protrude into the maxillary sinus can have various implicationslike: 1. Sinus expansion after extraction can greatly decrease the bone height available for implant placement Section: Dentistry 2.…”

Section: Introductionmentioning

confidence: 99%

Topographic Relationship Of Maxillary Sinus Floor With The Posterior Teeth Roots Using Panoramic Radiography And Cone Beam Computed Tomography (CBCT)

Ahmed¹,

Sajad²,

Malik³

et al. 2018

AIMDR

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Background: The relation of maxillary posterior teeth roots to the maxillary sinus floor is important for diagnosing and planning of many surgical procedures. The anatomical proximity of the root apices of the maxillary posterior teeth to the maxillary sinus floor may favor the development of inflammatory, infectious and/or traumatic alterations in the maxillary sinus. Objective: To correlate the topographic relationship of the maxillary sinus floor to the posterior teeth roots using panoramic radiography and cone beam computed tomography (CBCT). Methods: Panoramic and CBCT images of 30 patients were analyzed. The relationship between the posterior teeth and the maxillary sinus and panoramic radiography signs associated with protrusion of root apices into the sinus were evaluated following Kwak et al. (2004) classification. Results: The OPG showed statistically significant (P>0.001) longer root projection in the sinus cavity in comparison with the root protrusion into the sinus measured by using CBCT images. It was found that cbct was statistically more significant than OPG. Given the limitations of panoramic radiography being a 2D radiography. Conclusion: CBCT is reliable in assessment of topographic relationship of maxillary sinus floor with the posterior teeth in comparision with panoramic radiography CBCT is indicated to provide the information about the relation to the maxillary sinus floor when there is protrusion detected in panoramic images.

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Topographic anatomy of the inferior wall of the maxillary sinus in Koreans

Cited by 142 publications

References 7 publications

Proximity of Premolar Roots to Maxillary Sinus: A Radiographic Survey Using Cone-beam Computed Tomography

Proximity of Premolar Roots to Maxillary Sinus: A Radiographic Survey Using Cone-beam Computed Tomography

Reliability of Periapical Radiographs and Orthopantomograms in Detection of Tooth Root Protrusion in the Maxillary Sinus: Correlation Results with Cone Beam Computed Tomography

Topographic Relationship Of Maxillary Sinus Floor With The Posterior Teeth Roots Using Panoramic Radiography And Cone Beam Computed Tomography (CBCT)

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