Novel 3D printing method to reinforce implant‐supported denture fiberglass as material for implant prosthesis: A pilot study

Nicali, Andrea; Pradal, Giulia; Brandolini, Gianluca; Mantelli, Andrea; Levi, Marinella

doi:10.1002/cre2.568

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…In the field of digital dentistry, innovations arise at a fast pace, and they constantly lead to the development of therapy concepts and materials for oral rehabilitation based on 3D datasets. Recent innovations have included a fully digital workflow for dental prostheses [ 51 , 52 ] and the emergence of highly functional materials, like oxide ceramics [ 53 ], fibre-reinforced composites [ 54 ] and glass/carbon fibres [ 55 ].…”

Section: Discussionmentioning

confidence: 99%

Investigation of the palatal soft tissue volume: a 3D virtual analysis for digital workflows and presurgical planning

et al. 2022

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Background In mucogingival and implant surgery, an autologous soft tissue graft from the palate is the gold standard for reconstructing missing keratinised soft tissue and volume. Previously, presurgical measurements of the graft harvesting site were described with two-dimensional (2D) linear measurements. The present observational clinical study aimed to evaluate a three-dimensional (3D) measurement method for determining the present palatal soft tissue volume for each patient individually. Methods Pre-existing cone beam computed tomography (CBCT) scans of 20 patients were converted into 3D Standard Tessellation Language models of the bone surface. Intraoral impressions of the maxilla were taken and digitised to visualise the gingival surface. The resulting virtual models of bone (reference value) and gingival (actual value) surfaces were merged, with tooth surfaces used for registration. The region between the central incisors and the hard palate was subdivided into 5 regions of interest (ROIs). The distance between palatal bone and gingival surface was analysed both volumetrically and linearly, and the results were statistically evaluated for the ROIs. Results The average gingival surface area on the palate was 19.1 cm2, and the mean volume was 58.2 cm3 (± 16.89). Among the ROIs, the mean linear value was highest in the most distal region, from the second molar to the hard palate (4.0 ± 1.09 mm) and lowest in the canine region (1.9 ± 0.63 mm). For mean distance, significant differences were found for the anterior palate and the most posterior palate in comparison with all other ROIs (p < 0.01). The volume measurements also declined significantly and steadily between the posterior (1.9 ± 1.0 cm3) and anterior palates (0.4 ± 0.2 cm3). Conclusions By merging digital data, palatal soft tissue could be quantified virtually. The results were reliable and comparable to previous findings with linear measurement methods. This 3D soft tissue volume analysis method fully exploited the diagnostic potential of data that are frequently collected for presurgical planning in oral surgery (i.e., CBCT + surface scans). This evaluation method might be useful for volumetric and linear measurements in other applications in anatomy and for determining palatal soft tissue dimensions in the planning stage before surgical interventions. Trial registration This observational clinical trial was retrospectively registered in the German Clinical Trials Register, reference number: DRKS00023918.

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Section: Discussionmentioning

confidence: 99%

Investigation of the palatal soft tissue volume: a 3D virtual analysis for digital workflows and presurgical planning

et al. 2022

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“…Aligner tooth movement depends on shape changes, and discrepancies can create the pushing force for crown tip movement [84]. Enhancing composite attachments' mechanical properties improves aligner surface contact and complements aligner efficacy [43,135]. Additionally, multi-component systems containing various properties as well as material components can be utilized to tailor desired properties and customize movement of the direct 3D printed clear aligners [136,137].…”

Section: Future Direction Of the 3d Printing Alignersmentioning

confidence: 99%

Advancements in Clear Aligner Fabrication: A Comprehensive Review of Direct-3D Printing Technologies

Narongdej,

Hassanpour,

Alterman

et al. 2024

Polymers

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Clear aligners have revolutionized orthodontic treatment by offering an esthetically driven treatment modality to patients of all ages. Over the past two decades, aligners have been used to treat malocclusions in millions of patients worldwide. The inception of aligner therapy goes back to the 1940s, yet the protocols to fabricate aligners have been continuously evolved. CAD/CAM driven protocol was the latest approach which drastically changed the scalability of aligner fabrication—i.e., aligner mass production manufacturing. 3D printing technology has been adopted in various sectors including dentistry mostly because of the ability to create complex geometric structures at high accuracy while reducing labor and material costs—for the most part. The integration of 3D printing in dentistry has been across, starting in orthodontics and oral surgery and expanding in periodontics, prosthodontics, and oral implantology. Continuous progress in material development has led to improved mechanical properties, biocompatibility, and overall quality of aligners. Consequently, aligners have become less invasive, more cost-effective, and deliver outcomes comparable to existing treatment options. The promise of 3D printed aligners lies in their ability to treat malocclusions effectively while providing esthetic benefits to patients by remaining virtually invisible throughout the treatment process. Herein, this review aims to provide a comprehensive summary of studies regarding direct-3D printing of clear aligners up to the present, outlining all essential properties required in 3D-printed clear aligners and the challenges that need to be addressed. Additionally, the review proposes implementation methods to further enhance the effectiveness of the treatment outcome.

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Novel 3D printing method to reinforce implant‐supported denture fiberglass as material for implant prosthesis: A pilot study

Nicali

Pradal

Brandolini³

et al. 2022

Clinical & Exp Dental Res

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Objectives: Despite a large amount of materials and methods to make an implantsupported denture, nowadays there is no gold standard. Every solution has pros and cons that guide the clinician and the technician to choose the best solution for a single case. The aim of this study was to evaluate the mechanical characteristics of the fiber-reinforced composite superstructure made by using a novel threedimensional (3D) printing technology able to create a reinforcing structure patient-specific, more reliable, structurally optimized, and faster than conventional methods. Materials and Methods:To evaluate mechanical performances of 3D-printed fiberglass, mechanical characterization of 3D-printed material was performed.Before proceeding with the realization of the final prosthesis, five specimens were created on which the tensile test and volumetric fiber content measurement were performed. Then denture reinforcement 3D printing process began. Initially, the robot prints layers of fiber. Finally, the obtained 3D-printed reinforcement structure was finalized in the lab. Results:The prosthesis obtained through this process was lighter than a traditional prosthesis, there was a greater chemical adhesion between resin and 3D-printed reinforcement structure and a better result was obtained from an esthetic point of view. Conclusions:The outcomes we obtained endorse its performance both mechanical and esthetic. The entire process is automatic and does not require human operation thanks to specific software programming.

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Novel 3D printing method to reinforce implant‐supported denture fiberglass as material for implant prosthesis: A pilot study

Cited by 5 publications

References 11 publications

Investigation of the palatal soft tissue volume: a 3D virtual analysis for digital workflows and presurgical planning

Investigation of the palatal soft tissue volume: a 3D virtual analysis for digital workflows and presurgical planning

Advancements in Clear Aligner Fabrication: A Comprehensive Review of Direct-3D Printing Technologies

Novel 3D printing method to reinforce implant‐supported denture fiberglass as material for implant prosthesis: A pilot study

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