Minimally Invasive Multidisciplinary Restorative Approach to the Esthetic Zone Including a Single Discolored Tooth

2021 ◽  
Author(s):  
A Tsujimoto ◽  
CA Jurado ◽  
J Villalobos-Tinoco ◽  
NG Fischer ◽  
S Alresayes ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Three Dimensional ◽  
Tooth Bleaching ◽  
Primary Concern ◽  
Sodium Perborate ◽  
Tooth Whitening ◽  
Surgical Guide ◽  
Japanese Paper ◽  
3D Printed ◽  
Feldspathic Porcelain

SUMMARY Objectives: The case report describes a minimally invasive, multidisciplinary approach to a single discolored anterior tooth, with internal bleaching using traditional Japanese paper (Washi), a gingivoplasty with a three-dimensional (3D) printed surgical guide, and ultrathin feldspathic porcelain veneers. Clinical consideration: The patient’s primary concern was improving her smile. After clinical evaluation, internal tooth bleaching for the discolored tooth and gingivoplasty with restoration of the maxillary anterior six teeth and first premolars was recommended. The internal tooth whitening was accomplished with sodium perborate mixed with 30% hydrogen peroxide impregnated in Washi and sealed in the root canal with glass ionomer. Once the tooth bleaching was completed, the 3D printed surgical guide was placed in the patient’s maxillary anterior region and used to guide soft tissue recontouring. After 6 months, ultrathin feldspathic porcelain veneers were placed. Conclusion: Well-planned restorative procedures combining internal tooth bleaching using Washi, gingivoplasty performed with electrosurgery using a 3D printed surgical guide, and ultrathin feldspathic porcelain veneers can achieve the desired results in the esthetic zone and remain successful for 4 years.

Minimally invasive corticotomy in orthodontics using a three-dimensional printed CAD/CAM surgical guide

2016 ◽  
Vol 45 (9) ◽  
pp. 1059-1064 ◽  
Author(s):  
M. Cassetta ◽  
M. Giansanti ◽  
A. Di Mambro ◽  
S. Calasso ◽  
E. Barbato
Keyword(s):  
Minimally Invasive ◽  
Three Dimensional ◽  
Surgical Guide ◽  
Cad Cam

scholarly journals Computer-Guided Bone Biopsy: A Technical Note with the Description of a Clinical Case

2021 ◽  
Vol 8 (12) ◽  
pp. 214
Author(s):  
Federica Altieri ◽  
Giovanna Iezzi ◽  
Valeria Luzzi ◽  
Gianni Di Giorgio ◽  
Antonella Polimeni ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Computer Aided Design ◽  
Bone Biopsy ◽  
Three Dimensional ◽  
Technical Note ◽  
Invasive Approach ◽  
Surgical Guide ◽  
Stl File ◽  
Computer Aided ◽  
Cad Cam

Aim: The aim of this technical note is to present a computer-aided design–computer-aided manufacturing (CAD–CAM) surgical guide to perform a computer-guided bone biopsy. Traditionally, to diagnose abnormal conditions affecting jawbone, a bone biopsy is performed with the use of a trephine bur. The positioning of the bur, during the biopsy, is based on the skill of the surgeon; therefore, an inaccurate placement of a trephine bur may occur. The use of a guide, however, can minimize this risk and achieve a better result. Materials and Methods: To determine the site and the extension of bone sampling, the stereolithography file (STL) file of cone–beam computed tomography (CBCT) images is acquired using a specific planning software and superimposed with the STL file of a dental cast; a virtual surgical guide is designed, using the same software that allows a 3D (three-dimensional) view of the guide from different perspectives and planes. The number and site of guide tubes are determined on the basis of the width and the extension of the sampling; thanks to a 3D printer, the surgical guide is manufactured. Results: The use of a customized surgical guide realized with CAD–CAM technology allows a precise and minimally invasive approach, with an accurate three-dimensional localization of the biopsy site. Conclusions: The high precision, great predictability, time-effectiveness and versatility of the present guide should encourage the clinician to use this minimally invasive surgical approach, but controlled clinical trials should be conducted to evaluate the advantages as well as any possible complications.

scholarly journals Minimally invasive technique for non-vital tooth bleaching using traditional Japanese paper

2020 ◽  
Vol 62 (4) ◽  
pp. 458-460
Author(s):  
Carlos A. Jurado ◽  
Akimasa Tsujimoto ◽  
Jose Villalobos-Tinoco ◽  
Hidehiko Watanabe ◽  
Toshiki Takamizawa ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Minimally Invasive Technique ◽  
Tooth Bleaching ◽  
Invasive Technique ◽  
Japanese Paper

scholarly journals Case Report: A 3D-Printed Surgical Guide for Breast-Conserving Surgery After Neoadjuvant Chemotherapy

2021 ◽  
Vol 11 ◽  
Author(s):  
Zhen-Yu Wu ◽  
Guk Bae Kim ◽  
Sangwook Lee ◽  
Seung Hyun Choi ◽  
Namkug Kim ◽  
...  
Keyword(s):  
Neoadjuvant Chemotherapy ◽  
Three Dimensional ◽  
Breast Conserving Surgery ◽  
Quantitative Mri ◽  
Resection Margins ◽  
Tumor Localization ◽  
Surgical Guide ◽  
3D Printed ◽  
Magnetic Resonance Imaging Mri ◽  
Tumor Area

BackgroundA challenging problem for patients undergoing breast-conserving surgery after neoadjuvant chemotherapy (NACT) is the accuracy of preoperative tumor localization. After chemotherapy, the original tumor is likely to shrink or scatter dramatically or even show complete remission. For breast-conserving surgery, the development of a guidance device to accurately estimate the resection area is imperative.Case PresentationWe produced a three-dimensional (3D)–printed breast surgical guide (BSG) based on prone and supine magnetic resonance imaging (MRI). This device was tested on a patient who underwent breast-conserving surgery after NACT. Both ultrasonography and MRI revealed that the tumor shrank substantially after NACT. Identifying the target tumor area using pre-NACT MRI was feasible, and the tumor was safely removed with clear resection margins.ConclusionThe BSG has several advantages over conventional methods for tumor localization after NACT. In particular, the BSG provided precise quantitative MRI information about the tumor area.

Guided surgery with 3D printed device: a case report

2020 ◽  
Author(s):  
Michelle Carvalho de Sales ◽  
Rafael Maluza Flores ◽  
Julianny da Silva Guimaraes ◽  
Gustavo Vargas da Silva Salomao ◽  
Tamara Kerber Tedesco ◽  
...  
Keyword(s):  
Operating Time ◽  
Three Dimensional ◽  
Conventional Technique ◽  
Cervical Region ◽  
Mean Deviation ◽  
Apical Region ◽  
Virtual Planning ◽  
Surgical Guide ◽  
Surgical Guides ◽  
High Level

Dental surgeons need in-depth knowledge of the bone tissue status and gingival morphology of atrophic maxillae. The aim of this study is to describe preoperative virtual planning of placement of five implants and to compare the plan with the actual surgical results. Three-dimensional planning of rehabilitation using software programs enables surgical guides to be specially designed for the implant site and manufactured using 3D printing. A patient with five teeth missing was selected for this study. The patient’s maxillary region was scanned with CBCT and a cast model was produced. After virtual planning using ImplantViewer, five implants were placed using a printed surgical guide. Two weeks after the surgical procedure, the patient underwent another CBCT scan of the maxilla. Statistically significant differences were detected between the virtually planned positions and the actual positions of the implants, with a mean deviation of 0.36 mm in the cervical region and 0.7 mm in the apical region. The surgical technique used enables more accurate procedures when compared to the conventional technique. Implants can be better positioned, with a high level of predictability, reducing both operating time and patient discomfort.

Use of Three-dimensional Printing in the Development of Optimal Cardiac CT Scanning Protocols

2020 ◽  
Vol 16 (8) ◽  
pp. 967-977
Author(s):  
Zhonghua Sun
Keyword(s):  
Cardiovascular Disease ◽  
Cardiac Computed Tomography ◽  
Three Dimensional ◽  
Ct Scanning ◽  
Aortic Diseases ◽  
Clinical Value ◽  
Three Dimensional Printing ◽  
Doctor Patient Communication ◽  
Medical Education And Training ◽  
3D Printed

Three-dimensional (3D) printing is increasingly used in medical applications with most of the studies focusing on its applications in medical education and training, pre-surgical planning and simulation, and doctor-patient communication. An emerging area of utilising 3D printed models lies in the development of cardiac computed tomography (CT) protocols for visualisation and detection of cardiovascular disease. Specifically, 3D printed heart and cardiovascular models have shown potential value in the evaluation of coronary plaques and coronary stents, aortic diseases and detection of pulmonary embolism. This review article provides an overview of the clinical value of 3D printed models in these areas with regard to the development of optimal CT scanning protocols for both diagnostic evaluation of cardiovascular disease and reduction of radiation dose. The expected outcomes are to encourage further research towards this direction.

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