scholarly journals Digital Planning and Manufacturing of Maxillary Skeletal Expander for Patients with Thin Palatal Bone

2021 ◽  
Vol Volume 14 ◽  
pp. 299-311
Author(s):  
Daniele Cantarella ◽  
Lorena Karanxha ◽  
Paolo Zanata ◽  
Christoph Moschik ◽  
Ana Torres ◽  
...  
Keyword(s):  
Digital Planning ◽  
Palatal Bone

scholarly journals Autologous Graft in the Anterior Maxilla—A Case Report

2021 ◽  
Vol 5 (1) ◽  
pp. 36
Author(s):  
Rodolfo Vaz ◽  
Pedro Gameiro ◽  
Pedro Sottomayor ◽  
Bernardo Saldanha ◽  
Pedro Rodrigues
Keyword(s):  
Bone Regeneration ◽  
Gold Standard ◽  
Treatment Plan ◽  
Previous History ◽  
Guided Bone Regeneration ◽  
Bone Thickness ◽  
Anterior Maxilla ◽  
Patient Morbidity ◽  
History Of ◽  
Palatal Bone

A 44-year-old male patient was referred to the Egas Moniz Dental Clinic, with a previous history of failed bone regeneration, resulting in a reduced buccal-palatal bone thickness and aesthetic compromise of the gingival margin of the anterior maxilla. Since the use of autologous bone is considered the “gold-standard” in guided bone regeneration, the treatment plan consisted of an autologous mental graft into the maxilla, with a simultaneous guided bone regeneration with a xenograft and absorbable membrane. This allowed a predictable volumetric bone regeneration with low patient morbidity and posterior fixed rehabilitation.

scholarly journals Full Zirconia Implant-Born Prosthetic Rehabilitation with CAD/CAM Technology after Accurate Digital Planning. A Case Report

2021 ◽  
Vol 18 (15) ◽  
pp. 7998
Author(s):  
Riccardo Scaringi ◽  
Michele Nannelli ◽  
Alessio Franchina ◽  
Giuseppe Lizio ◽  
Luigi V. Stefanelli ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Ceramic Materials ◽  
Surgical Removal ◽  
Holistic Treatment ◽  
Single Crown ◽  
Digital Planning ◽  
Cad Cam ◽  
Treatment Philosophy ◽  
Zirconia Implant

CAD/CAM technology can enhance the dentistry application of ceramic materials that meet the more relevant biocompatibility and aesthetics demands. In implant-borne prosthesis rehabilitation, yttria-stabilized zirconia appeared to be a valid alternative to metal-alloys and titanium, with comparable mechanical properties and even better interaction with bone and soft tissues. The improvement of monolithic CAD/CAM manufacturing allows for a reliable, predictable, and rapid workflow that can correspond to a holistic treatment philosophy associated with zirconia fixtures. This reported clinical case highlights the advantages of this approach in resolving particularly functionally and aesthetically complex situations. A 40-year-old patient with permanent canine impaction and the persistence of a deciduous tooth compromised by caries was successfully rehabilitated with the surgical removal of the enclosed tooth, the seating of a mono-phase zirconia implant after the deciduous extraction and its loading with a zirconia single crown, without any clinical or radiographical alteration up to seven years follow-up.

scholarly journals Accuracy of digital planning in zygomatic implants

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
B. Xing Gao ◽  
O. Iglesias-Velázquez ◽  
F. G.F. Tresguerres ◽  
A. Rodríguez González Cortes ◽  
I. F. Tresguerres ◽  
...  
Keyword(s):  
Surgical Planning ◽  
Angular Deviation ◽  
Surgical Experience ◽  
Proper Position ◽  
Zygomatic Implants ◽  
Digital Planning ◽  
Key Factor ◽  
Implant Length ◽  
Zygomatic Implant ◽  
Maxillary Atrophy

Abstract Background Zygomatic implants have been described as a therapeutic alternative for patients with severe maxillary atrophy in order to avoid bone augmentation procedures. Taking that into account, in these treatments, the key factor is the position of the implant, the virtual surgical planning (VSP) is widespread among most clinicians before surgery on the patient. However, there are no studies which evaluate the clinical relevance of these VSP. The aim of this study is to determine whether digital planning on zygomatic implants has any influence on the implant dimensions and position, even when performing conventional surgery afterwards. Results Fourteen zygomatic implants were placed in four patients. Pre-operative and post-operative helicoidal computed tomography were performed to each patient to allow the comparison between the digital planning and the final position of implants. Tridimensional deviation (TD), mesio-distal deviation (MDD), bucco-palatine deviation (BPD), and apico-coronal deviation (ACD) were evaluated as well as angular deviation (AD). Significative differences in apical TD were observed with a mean of 6.114 ± 4.28 mm (p < 0.05). Regarding implant position, only implants placed in the area of the first right molar reported significant differences (p < 0.05) for ACD. Also, implant length larger than 45 mm showed BPD significative differences (p < 0.05). Conclusions Zygomatic implant surgery is a complex surgical procedure, and although VSP is a useful tool which helps the clinician determine the number and the length of zygomatic implants as well as its proper position, surgical experience is still mandatory.

scholarly journals Height difference between the vestibular and palatal walls and palatal width: a cone beam computed tomography approach

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
P. López-Jarana ◽  
C. M. Díaz-Castro ◽  
A. Falcão ◽  
C. Falcão ◽  
J. V. Ríos-Santos ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Bone Thickness ◽  
Height Difference ◽  
Mean Values ◽  
The Mean ◽  
Maxilla And Mandible ◽  
Palatal Bone ◽  
Two Parameters

Abstract Background The objective of this study was to measure two parameters involved in tri-dimensional implant planning: the position of the buccal and palatal bone wall and the palatal thickness. Methods Cone beam computed tomography (CBCT) images (Planmeca ProMax 3D) of 403 teeth (208 upper teeth and 195 lower teeth) were obtained from 49 patients referred to the Dental School of Seville from January to December 2014. The height difference between the palatal and buccal walls was measured on the most coronal point of both walls. The thickness of the palatal wall was measured 2 mm from the most coronal point of the palatal wall. Results The mean values in the maxilla were 1.7 ± 0.9 mm for central and lateral incisors, 2.2 ± 1.7 mm for canines, 1.6 ± 0.9 mm for premolars and 1.9 ± 1.5 mm for molars. In the lower jaw, the mean values were 1.3 ± 0.8 mm for incisors, 1.7 ± 1.2 mm for canines, 2.3 ± 1.3 mm for premolars, and 2.6 ± 1.7 mm for molars. In the upper jaw, more than 55% of maxillary teeth (excluding second premolars and molars) presented mean height differences greater than 1 mm. In the mandible, more than 60% of incisors showed a buccal bone thickness of 1 mm from the apical to lingual aspect. All teeth except the second premolar presented a buccal wall located more than 1 mm more apically than the lingual bone wall. Conclusions The buccal bone wall is located more apically (greater than 1 mm) than the palatal or lingual table in most of the cases assessed. The thickness of the palatal or lingual table is also less than 2 mm in the maxilla and mandible, except in the upper canines and premolars and the lower molars.

Intuitive, digitale Strukturlayoutplanung*/Intuitive digital planning of structure layouts – Overcoming the challenges of disruptive production programs in the automotive industry

2018 ◽  
Vol 108 (09) ◽  
pp. 611-616
Author(s):  
S. F. Schäfer ◽  
U. Bracht
Keyword(s):  
Automotive Industry ◽  
New Technologies ◽  
Know How ◽  
Digital Planning ◽  
The Future ◽  
Factory Of The Future ◽  
Future Technologies ◽  
The Impact

Zukünftige Antriebstechnologien sowie neue Fabrik- und Logistikkonzepte verändern die Rahmenbedingungen der Automobilproduktion grundlegend. Schon heute muss die Strukturlayoutplanung Innovationen und Unsicherheiten in Form von mehr Varianten, abgestimmt in sehr kurzer Zeit, durch die Einbeziehung von weiteren Know-how-Trägern berücksichtigen. Neue Herausforderungen, wie die Planung der Batteriefertigungen, müssen schnell und intuitiv gelöst werden. Einen Beitrag dafür liefert dieser Artikel. &nbsp; Future technologies in automotive mobility as well as new factory and logistic concepts are changing the framework in car production. Innovations and uncertainties (e. g. the impact of new technologies) have to be taken in consideration for the factory of the future. New tasks, such as planning the assembly of batteries, need to be solved fast and intuitively. This paper presents an approach to this topic.

Site controlling in infrastructure projects by digital methods

2021 ◽  
Author(s):  
Tino Walther ◽  
Marianne Pieper ◽  
Hans-Joachim Bargstädt
Keyword(s):  
Performance Measurement ◽  
Construction Industry ◽  
Process Model ◽  
Current Practice ◽  
Early Stage ◽  
Recommendations For Action ◽  
Digital Planning ◽  
The Status ◽  
Project Controlling ◽  
Digital Methods

<p>The construction industry is essentially determined by digital transformation and an increasingly complex market environment. Project controlling and monitoring is of high importance for construction site activities to achieve the project goals. Digital planning and recording methods make it possible to identify deviations at an early stage and to ensure the profitability of the project. To discuss the current practice of construction performance measurement as well as digital approaches in this domain, a qualitative study was carried out. The results of this empirical analysis examine the status quo of the construction performance measurement in civil engineering companies to illustrate the currently used methods and trends. Findings for the future use of digital planning and recording methods were obtained from the investigation. Based on empirical hypotheses, recommendations for action as well as for an improved process model are given.</p>

Mapping of palatal bone thickness using computed tomography for placement of mini screws — A comparative study between genders, adolescents and adults

2019 ◽  
Vol 78 (1) ◽  
pp. 18-25
Author(s):  
Soham Mallick ◽  
P.S. Murali ◽  
M.N. Kuttappa ◽  
Ashutosh Shetty ◽  
M.S. Ravi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Comparative Study ◽  
Bone Thickness ◽  
Adolescents And Adults ◽  
Palatal Bone

scholarly journals Digital planning and guided surgery in oral rehabilitation

2020 ◽  
Author(s):  
Larissa Braga dos Santos ◽  
Adriano Relvas Barreira de Oliveira ◽  
Mauro Lefrançois ◽  
Marcos Venício Azevedo ◽  
Pablo Sotelo ◽  
...  
Keyword(s):  
Surgical Planning ◽  
Three Dimensional ◽  
Oral Rehabilitation ◽  
Digital Workflow ◽  
Surgical Guide ◽  
Surgical Guides ◽  
Digital Planning ◽  
Cad Cam ◽  
Correct Understanding ◽  
Plaster Model

Digital planning of the prosthesis associated with surgical planning increased predictability, since surgical guides indicate the best place for implant installation, thus reducing the number of complications, and the CAD/CAM system provides predictability in the preparation of final restorations, according to the procedure previously planned. Our study reported a digital workflow used for the guided installation of two dental implants in regions 14 and 16, extraction of tooth 15 and installation of a fixed prothesis over implants. After anamnesis and clinical evaluation, intra- and extra-oral photographs of the patient were performed, molding the upper arch with polyvinylsiloxane (2-step putty/light-body technique) and requesting computed tomography. The plaster model obtained was sent to the laboratory and scanned. The generated file (STL) was used to create a diagnostic wax-up that was aligned to the tomography (in DICOM format), enabling the three-dimensional planning of the implants, which generated a partial printed surgical guide after approval of the dentist. After six months, the patient received the provisional fixed prosthesis printed in PMMA (polymethylmethacrylate) on an intermediate in PEEK (polyetheretherketone) aiming to condition an emergency profile to receive a definitive prosthesis two months later, with zirconia-milled infrastructure on a ti-base. The correct understanding of the operator about the steps of the digital workflow (diagnosis, prosthetic planning, surgical planning, guide preparation, temporary and final restorations) gives the operator improved predictability at the time of surgery as well as satisfactory aesthetic and functional result of definitive restorations.

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