ACCURACY OF CONE BEAM COMPUTED TOMOGRAPHY (CBCT) IN ASSESSMENT OF MANDIBULAR MOLAR FURCATION DEFECTS AS COMPARED TO THE INTRA-OPERATIVE FINDINGS

Abstract Background The vertical thickness of the peri-implant mucosa is associated with the amount of post treatment marginal bone loss. However, the variations in mucosal thickness at the different edentulous sites have been sparsely documented. The purpose of the study was to conduct a survey of the frequency distribution of variations in mucosal thickness at the different sites of the edentulous alveolar ridge and to compare them according to gender. Our study included 125 partially edentulous patients having a total of 296 implant sites. Cone-beam computed tomography (CBCT) scans were obtained by placing a diagnostic template with a radiopaque crown indicator on the ridge to determine the mucosal thickness at the crest of the alveolar ridge. Results The mucosal thickness was 3.0±1.3 mm in the maxilla, which was significantly greater than the mucosal thickness of 2.0±1.0 mm in the mandible (p<0.001). In both the maxilla and the mandible, the mucosa was the thickest in the anterior region, followed by the premolar and molar regions. Sites were further classified into two groups based on whether the mucosal thickness was greater than 2 mm. In the mandible, more than half of the sites showed a mucosal thickness of 2 mm or less. Conclusions Although this study was a limited preoperative study, the vertical mucosal thickness at the edentulous ridge differed between the maxillary and mandibular regions. The majority of sites in the mandibular molar region had a mucosal thickness of less than 2 mm. Practitioners might be able to develop an optimal dental implant treatment plan for long-term biologic and esthetic stability by considering these factors.

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Effect of voxel size on detection of fenestration, dehiscence and furcation defects using cone-beam computed tomography

Oral Radiology ◽

10.1007/s11282-020-00508-0 ◽

2021 ◽

Author(s):

Masoumeh Eftekhar ◽

Hanieh Kaviani ◽

Nina Rouzmeh ◽

Aitin Torabinia ◽

Alireza Akbarzadeh Baghban

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Voxel Size ◽

Furcation Defects

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Inferior alveolar nerve paraesthesia after overfilling into the mandibular canal, confirmed by cone-beam computed tomography: a case report

Brazilian Dental Science ◽

10.14295/bds.2021.v24i2.2421 ◽

2021 ◽

Vol 24 (2) ◽

Author(s):

Claudemir de Souza Júnior ◽

Ricardo Machado ◽

Renee Ashley Batts ◽

Lucas da Fonseca Roberti Garcia

Keyword(s):

Computed Tomography ◽

Case Report ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Inferior Alveolar Nerve ◽

Mandibular Canal ◽

Cone Beam ◽

Filling Material ◽

Mandibular Molar ◽

Patient Reported

The filling material should be restricted to the root canal, and not extend to the periradicular tissues. Overextension occurs when there is an overflow of gutta-percha and sealer, whereas overfilling refers to the overflow only of sealer beyond the apical foramen. Both may cause several negative clinical consequences. Nevertheless, an accurate diagnosis of where they occurred cannot always be performed by conventional radiographic examination, because of the two-dimensional aspect of the image. This paper describes a clinical case of labiomandibular paraesthesia after overfilling into the mandibular canal (MC), as diagnosed by cone-beam computed tomography (CBCT), later used to perform the treatment planning. A 34-year-old Caucasian female patient sought a private dental clinic complaining of pain in the right mandibular posterior region. After taking the anamnesis and performing clinical and radiographic exams, the patient was diagnosed with pulp necrosis in the second right mandibular molar, and underwent root canal treatment. The final radiography showed overextension or overfilling, probably into the MC. About 2 hours after the procedure, the patient reported paraesthesia of her lower right lip and chin. A CBCT confirmed a small overfilling into the MC. For this reason, vitamin B12 was prescribed as the first treatment option. After 7 days, the patient reported a significant decrease in paraesthesia, and was completely normal after 15 days. This case report shows that CBCT is an effective radiographic diagnostic tool that can be used as an alternative in clinical cases of labiomandibular paraesthesia caused by overextension or overfilling. Keywords Endodontic treatment; Overfilling; Paraesthesia; Conebeam computed tomography.

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Comment on: An analysis of the first and second mandibular molar roots proximity to the inferior alveolar canal and cortical plates using cone beam computed tomography among the Saudi population

Saudi Medical Journal ◽

10.15537/smj.2019.7.24268 ◽

2019 ◽

Vol 40 (7) ◽

pp. 737-737

Author(s):

Nasser Alasseri

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Saudi Population ◽

Mandibular Molar ◽

Inferior Alveolar Canal

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Comment on: An analysis of the first and second mandibular molar roots proximity to the inferior alveolar canal and cortical plates using cone beam computed tomography among Saudi population

Saudi Medical Journal ◽

10.15537/smj.2019.4.24060 ◽

2019 ◽

Vol 40 (4) ◽

pp. 409-409

Author(s):

Hani Mawardi

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Saudi Population ◽

Mandibular Molar ◽

Inferior Alveolar Canal

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Prevalence of c-shaped second mandibular molar canals in the population of central Serbia: A cone-beam computed tomography study

Vojnosanitetski pregled ◽

10.2298/vsp181210028z ◽

2019 ◽

pp. 28-28

Author(s):

Suzana Zivanovic ◽

Milos Papic ◽

Mirjana Radovic ◽

Aleksandra Misic ◽

Milos Zivic ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Mandibular Molar

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Role of Cone-Beam Computed Tomography in the Management of Periodontal Disease

Dentistry Journal ◽

10.3390/dj7020057 ◽

2019 ◽

Vol 7 (2) ◽

pp. 57 ◽

Cited By ~ 1

Author(s):

V. Thomas Eshraghi ◽

Kyle A. Malloy ◽

Mehrnaz Tahmasbi

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Periodontal Diseases ◽

Standard Of Care ◽

Cone Beam ◽

Additional Information ◽

Technological Advances ◽

Furcation Defects ◽

The Individual

The goal of this paper was to review the current literature surrounding the use of cone beam computed tomography (CBCT) related to the diagnosis, prognostic determination, and treatment of periodontal diseases. A literature review was completed to identify peer-reviewed articles related to CBCT and periodontics. The results were filtered to pool only articles specific to CBCT and periodontal diagnosis, prognosis, and treatment/outcomes. The articles were reviewed and findings summarized. Author’s commentary on technological advances and additional potential uses of CBCT in the field of periodontics were included. There is evidence to suggest that CBCT imaging can be more accurate in diagnosing specific periodontal defects (intrabony and furcation defects), and therefore be helpful in the prognostic determination and treatment planning. However, at this time, CBCT cannot be recommended as the standard of care. It is up to the individual clinician to use one’s own judgment as to when the additional information provided by CBCT may be beneficial, while applying the As Low As Reasonably Achievable (ALARA) principle. With continued technological advances in CBCT imaging (higher resolution, reduced imaging artifacts, lower exposure, etc.) the author’s believe that CBCT usage will become more prominent in diagnosis and treatment of periodontal diseases.

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The Variation of Pulp Canal Configuration in Mandibular Posterior Teeth Using Cone Beam Computed Tomography in Indonesia Subpopulation Mongoloid Race

Dentika Dental Journal ◽

10.32734/dentika.v23i1.3914 ◽

2020 ◽

Vol 23 (1) ◽

pp. 18-22

Author(s):

Trelia Boel ◽

Dewi Kartika ◽

Dennis

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Cross Sectional ◽

Posterior Teeth ◽

Mandibular Molar ◽

Molar Teeth ◽

Research Criteria ◽

Descriptive Survey

It is important to understand pulp canal configuration to have a successful endodontic treatment. Cone Beam Computed Tomography (CBCT) radiography is able to assess the pulp canal configuration, especially on the lingual/palatal, compared to the periapical radiography. The objective of the research is to know the prevalence pulp canal configuration of mandibular molar teeth in Indonesia subpopulation Mongoloid race using CBCT radiography. This research is a descriptive survey with a cross-sectional approach, using 38 CBCT radiographs from the patients undergoing dental treatments in hospitals in Medan. The subjects were selected based on research criteria; then their CBCT radiographs were interpreted and analyzed. The result shows the existence of mandibular mesial root type 2-1 (28.94%), 1-2-1 (5.26%), 2-2 (55.26%), 2-1-2-1 (2.64%), 3-2 (5.26%), 3-1 (2.64%), distal root type 1-1 (36.84%), 2-1 (23.68%), 1-2-1 (15.79%), 1-2 (2.63%), 2-2 (13.17%), 2-1-2-1 (5.26%), 1-3-1 (2.63%). The distolingual root of mandibular first molars consisted of type 1-1 (100%). Mesial root of mandibular second molars of type 1-1 (2.63%), 2-1 (50%), 1-2-1 (5.26%), 2-2 (36.85%), 2-1-2-1 (2.63%), 1-2-1-2 (2.63%), distal root type 1-1 (57.89%), 2-1 (15.79%), 1-2-1 (13.16%), 2-2 (10.53%), 2-1-2 (2.63%). This variation of the pulp canal can be influenced by the shape of roots. A flat root usually contains pulp canal configuration type II – VIII Vertucci, similarly to mandibular molar mesial canals. As a summary, there is a variation of pulp canal configuration in mandibular first and second molars on Indonesian Mongoloid race, as seen from the CBCT radiographs.

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