Method to control tongue position and open source image segmentation for cone-beam computed tomography of patients with large palatal defect to facilitate digital obturator design

Farook, Taseef Hasan; Mousa, Mohammed Assayed; Jamayet, Nafij Bin

doi:10.1016/j.ajoms.2019.09.009

Cited by 16 publications

(12 citation statements)

References 8 publications

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“…The methods applied to solve the major issues faced are highlighted in Supplementary A , section 5 and were all resolved prior to data collection. The challenges involved, along with the steep learning curve 28 and possible input errors are likely reasons why such workflows are seldom explored 10 , 21 , 23 , 29 in maxillofacial prosthetic dentistry. However, the large community support for open-source 16 , free biomedical service initiatives 6 and recently established reliability of Blender 28 and Meshmixer 4 , 29 in prosthetic dentistry show promise of an economically viable maxillofacial prosthetic digitisation alternative.…”

Section: Discussionmentioning

confidence: 99%

Development and virtual validation of a novel digital workflow to rehabilitate palatal defects by using smartphone-integrated stereophotogrammetry (SPINS)

Farook

Jamayet

Asif

et al. 2021

Sci Rep

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Palatal defects are rehabilitated by fabricating maxillofacial prostheses called obturators. The treatment incorporates taking deviously unpredictable impressions to facsimile the palatal defects into plaster casts for obturator fabrication in the dental laboratory. The casts are then digitally stored using expensive hardware to prevent physical damage or data loss and, when required, future obturators are digitally designed, and 3D printed. Our objective was to construct and validate an economic in-house smartphone-integrated stereophotogrammetry (SPINS) 3D scanner and to evaluate its accuracy in designing prosthetics using open source/free (OS/F) digital pipeline. Palatal defect models were scanned using SPINS and its accuracy was compared against the standard laser scanner for virtual area and volumetric parameters. SPINS derived 3D models were then used to design obturators by using (OS/F) software. The resultant obturators were virtually compared against standard medical software designs. There were no significant differences in any of the virtual parameters when evaluating the accuracy of both SPINS, as well as OS/F derived obturators. However, limitations in the design process resulted in minimal dissimilarities. With further improvements, SPINS based prosthetic rehabilitation could create a viable, low cost method for rural and developing health services to embrace maxillofacial record keeping and digitised prosthetic rehabilitation.

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Section: Discussionmentioning

confidence: 99%

Development and virtual validation of a novel digital workflow to rehabilitate palatal defects by using smartphone-integrated stereophotogrammetry (SPINS)

Farook

Jamayet

Asif

et al. 2021

Sci Rep

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“…The data available from the existing literature revealed the following acquisition modalities: CT scans [26,29,31,36,39,41,43,46,54,60,67,71], MRIs, CBCTs (for maxillary obturators) [22,24], structured light scanners [19][20][21]23,58], laser scanners [37,49,51,56,57,[62][63][64]68,70], light intensity scanners [30], facial scanners, intraoral scanners (IOSs) [3,18,25,27,32,44,53], desktop scanners [34,66], 3D photogrammetry [28,40,52,55,59,69], the monoscopic photogrammetry technique with a mobile phone [15] or two (or more) of the following combined registration modalities: CT and a facial scanner [61], CT an...…”

Section: Anatomic Data Acquisitionmentioning

confidence: 99%

“…Commercially available software: Mimics (Materialise, Leuven, Belgium) [22,31,42,43,46,54,60], 3-Matic 12.0 (Materialise, Leuven, Belgium) [21,33], CMF Pro Plan (Materialise, Leuven, Belgium) [29], Geomagic Studio (Geomagic, owned by 3D Systems, Rock Hill, SC, USA) [26,47], Free Form Software (SensAble Technologies, owned by 3D Systems, Rock Hill, SC, USA) [36], the ClayTools system (SensAble Technologies, owned by 3D Systems, Rock Hill, SC, USA) [50], 3DDoctor (Able Software Corp, Lexington, KY, USA) [67], Zbrush (Pixlogic Inc.) [39] and Osteo3D (Karnataka, India) [41], (Table 1); • Open-source software: Meshmixer (AutoDesk Inc.) [24].…”

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confidence: 99%

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Digital Workflow in Maxillofacial Prosthodontics—An Update on Defect Data Acquisition, Editing and Design Using Open-Source and Commercial Available Software

et al. 2021

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Background: A maxillofacial prosthesis, an alternative to surgery for the rehabilitation of patients with facial disabilities (congenital or acquired due to malignant disease or trauma), are meant to replace parts of the face or missing areas of bone and soft tissue and restore oral functions such as swallowing, speech and chewing, with the main goal being to improve the quality of life of the patients. The conventional procedures for maxillofacial prosthesis manufacturing involve several complex steps, are very traumatic for the patient and rely on the skills of the maxillofacial team. Computer-aided design and computer-aided manufacturing have opened a new approach to the fabrication of maxillofacial prostheses. Our review aimed to perform an update on the digital design of a maxillofacial prosthesis, emphasizing the available methods of data acquisition for the extraoral, intraoral and complex defects in the maxillofacial region and assessing the software used for data processing and part design. Methods: A search in the PubMed and Scopus databases was done using the predefined MeSH terms. Results: Partially and complete digital workflows were successfully applied for extraoral and intraoral prosthesis manufacturing. Conclusions: To date, the software and interface used to process and design maxillofacial prostheses are expensive, not typical for this purpose and accessible only to very skilled dental professionals or to computer-aided design (CAD) engineers. As the demand for a digital approach to maxillofacial rehabilitation increases, more support from the software designer or manufacturer will be necessary to create user-friendly and accessible modules similar to those used in dental laboratories.

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“…Researchers have found PS with various radiographic techniques including intraoral periapical radiograph (IOPA), bitewing and orthopantomography (OPG) [ 4 , 18 ]. In the modern era, cone beam computed tomography (CBCT) is quite often used for complex endodontic procedures; prosthodontics-implant and morphometric analysis of anatomical structures [ 19 , 20 , 21 , 22 ]. The added advantages of CBCT are being three-dimensional, giving a holistic image in all the sections.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Prevalence and Association of Pulp Stones with Cardiovascular Diseases and Diabetes Mellitus in the Saudi Arabian Population—A CBCT Based Study

Srivastava

Shrivastava

Nagarajappa

et al. 2020

IJERPH

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The detection of pulp stone in a patient suffering from undiagnosed systemic diseases can be an early diagnostic indicator. Thus, the aim of the study was to assess the prevalence of pulp stones in the Saudi Arabian population with cardiovascular diseases and diabetes mellitus. In a retrospective study, we included cone-beam computed tomography (CBCT) scans of 73 patients with cardiovascular disease and 76 patients with diabetes mellitus as group I and II, respectively. Group III comprised of CBCT scan of 80 healthy controls. From a total of 229 scans, 4807 teeth were screened for pulp stones throughout the arches. A chi-square test was used for comparing the prevalence of pulp stones among the groups. Univariable and multivariable analysis was done to evaluate the independent risk indicators for pulp stones. The tooth-wise prevalence of pulp stones in group I, II, and III was found to be 16.65%, 9.01%, and 3.86%, respectively. Patient-wise (p < 0.01) and tooth-wise (p < 0.01) prevalence was recorded significantly highest in the cardiovascular group followed by the diabetic group. The control group had the least prevalence. Significantly (p < 0.01) higher number of pulp stones were found in cardiovascular patients with age > 50 years compared to other groups. Similarly, a significantly increased number of pulp stones were seen in the 1st molar (p < 0.05) and the maxillary jaw (p < 0.05) of patients with cardiovascular diseases. Subjects with cardiovascular disease and diabetes were found to have 2.94 times (p < 0.001; CI 1.54–3.10) and 1.81 times (p < 0.01; CI 0.48–2.06) higher risk of having pulp stones in comparison to healthy subjects. The first molar has 2.20 times (p < 0.001; CI 0.84–2.45) increased the risk of having pulp stones compared to other tooth types. Systemic disease such as cardiovascular disease and diabetes mellitus poses a higher risk for the development of pulp stones. Among the systemic disease group, patients in the cardiovascular group showed a higher risk for pulp stones and also reported the maximum number of pulp stones compared to the diabetic and healthy subjects.

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Method to control tongue position and open source image segmentation for cone-beam computed tomography of patients with large palatal defect to facilitate digital obturator design

Cited by 16 publications

References 8 publications

Development and virtual validation of a novel digital workflow to rehabilitate palatal defects by using smartphone-integrated stereophotogrammetry (SPINS)

Development and virtual validation of a novel digital workflow to rehabilitate palatal defects by using smartphone-integrated stereophotogrammetry (SPINS)

Digital Workflow in Maxillofacial Prosthodontics—An Update on Defect Data Acquisition, Editing and Design Using Open-Source and Commercial Available Software

Assessing the Prevalence and Association of Pulp Stones with Cardiovascular Diseases and Diabetes Mellitus in the Saudi Arabian Population—A CBCT Based Study

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