DISEO BI Y TRIDIMENSIONAL PDF

DISEO BI Y TRIDIMENSIONAL PDF

Fundamentos del diseño bi- y tri-dimensional. Front Cover. Wucius Wong. Gustavo Gili, – Architectural design – pages. FUNDAMENTOS DEL DISEÑO BI Y TRI-DIMENSIONAL. marly Idarraga. Uploaded by. marly Idarraga. connect to download. Get pdf. Diseo Bi Y Tridimensional Pdf. Camera at 60 Hz. The capture of images was made by a Pinnacle (model Studio DV, version. ) video.

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The aim of this study was to compare cephalometric results of three and two dimensional surgical predictions in patients that underwent orthognatic surgery. The study involved two groups of 15 to 30 years old patients with craniofacial anomalies. The first group of patients had orthognatic surgery from April to January Pre and post-surgical lateral cephalometric measurements were done using Simplant program, version CMF 8. The second group of patients had orthognatic surgery from January to January Pre and post-surgical lateral cephalometric measurements were done manually.

The results of this study showed a more accurate surgical prediction with the Simplant program. In group I three-dimensional cephalometric measurement there was not a statistically significant difference between the prediction measurements done before the surgery and those compared with the post-surgically result.

Therefore we conclude that the three-dimensional method is more accurate than the two-dimensional method in planning surgical orthognatic procedures. Facial growth takes place in a gradual and well-ordered manner, however, there are factors that can influence or alter the facial components like bone, cartilage, the dentoalveolar complex and soft tissues.

There are five general methods to visualize, plan and predict the surgical results: Manipulation of the patients photographs to illustrate the treatment objectives, 3. Computer-based diagnosis and treatment planning using a software that produces changes in the soft-tissue profile as a result of the manipulation of digital structures in the lateral radiograph, 4. Tridimensional computerized technology for the planning and prediction of the orthognatic surgery.

Nowadays, the uprising of a new specialty in imagenology is being discussed. Several groups have obtained 3D data of the human face using several methods and they have studied growth with them. As with many new technologies, it was originally used in the industry and later adapted to medical applications and so stereolithographic models developed.

It was introduced first by Columbia Scientific Incorporated in and afterwards it was commercialized by Materialise Company; the operator can create a complete planning for treatment procedures such as distraction by obtaining simultaneous sectional views in three planes of space.

La Fogata: Identidad corporativa bi y tridimensional | Domestika

With this software one can perform the automatic placement of implants measuring distances, angles and bone density for positioning them in the precise location. Other software tools are surgical predictions which allow the visualization of osteotomies in a virtual model.

The movement of these segments can be simulated and it is possible to obtain measurements of bone structures with tridimensional cephalometry. In Prospil compared pre and postsurgical six months after surgery results with cephalometric hand-tracings in tracing paper using a bidimensional measuring technique for the surgical prediction. They also report that tridimensional cephalometry is indicated in patients who present severe asymmetries or craniofacial syndromes and that there are variations in the Basion anatomical landmark.

Based on bidimensional cephalometry they demonstrated with their study that the average of the nasolabial angle decrease was not statistically significant and that there is no correlation between the degree of change in the nasolabial angle and the amount of maxillary advancement. They used the OPAL program digital bidimensional program to predict the surgical changes and concluded that the average of the SNA, SNB, LAFH, OJ, OB values were precise when compared to the postsurgical results but they reported individual variations mainly in the Wits measurement difference between point A and point B measured upon the occlusal plane which turned out very imprecise.

The programs were used to simulate orthognatic surgery results in the soft tissues of ten patients who presented vertical discrepancies and were later compared with the postsurgical results. The purpose of their investigations was to evaluate and compare the imaging system in the third dimension tridimensional cephalometry with the imaging system in two dimensions conventional cephalometry.

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Upon that, they determined which of the two measuring techniques was more accurate and they located 33 anatomical landmarks with both methods in 9 dried skulls analyzing 72 measurements and comparing them to the same measurements taken from the skulls directly.

The results showed major variations in the bidimensional method which is currently the gold standard and an over appraisal of the Zy-Gn R measurements in contrast with the tridimensional method Sculptor Program, Glendora, California which showed more accuracy and 4 and 5 times more reliability than the bidimensional method. The purpose of this investigation was to determine which results of the prediction made with tridimensional and bidimensional cephalometry are more precise when evaluated with the postsurgical result.

The justification was based upon the fact that the Estomathology-Orthodontics Division performs the presurgical evaluation and planning using bidimensional cephalometrics. This investigation was intended to improve the treatment of maxillomandibular discrepancies by comparing the usefulness of conventional bidimensional cephalometry with tridimensional and offer greater precision by introducing new measurement techniques in the orthodontic-surgical planning and treatment.

The study design was comparative between two measurement techniques before and after treatmentopen, experimental, ambispective and cross-sectional. Files from patients who underwent orthognatic surgery between April and January The cephalometric measurements and surgical predictions were applied on computer-generated pre and postsurgical tridimensional models with the assistance of the Simplant Program, CMF 8.

Files from patients who had already undergone orthognatic surgery from January to January The cephalometric measurements were applied on pre and postsurgical lateral headfilms of already performed surgeries.

Fifteen cephalometric measurements were applied to both groups. The independent variables analyzed in this study were: The dependent variables were the following cephalometric measurements: Once the patient from the study group of the tridimensional cephalometry was selected, the obtained computerized axial tomography was sent to an Imagenology diagnostic center, the information uncompressed images non-processed information were filed in DICOM format in a CD compact disc.

No films are neededthe TAC images were traced and measured with aid from the Simplant program using some measurements from the Ricketts, Steiner and Bigerstaff analysis 2324 Figures 1 to 3. All obtained measurements were interpreted and the data was captured on a database.

The diagnosis, surgical treatment plan and surgery virtual simulation were made based on the data base obtained from the tridimensional cephalometry and with the study models and photographs Figures 4 to 6.

The measurements of the virtual surgery were recorded and the data was captured on a database, study model surgery was performed according to the plan and surgical guides were also performed.

The surgeon performed the tridinensional surgical procedures. Data from selected files was obtained from the archives of the Stomatology-Orthodontics Division regarding to surgeries performed with bidimensional cephalometry. Cephalometric tracings from the previous surgical prediction taken from the files hand-traced mobile tracing papers and from the hand-traced postsurgical lateral cephalometries were measured using some values from the Ricketts, Steiner and Bigerstaff analysis 2324 Figure 7.

All measurements obtained from the surgical prediction and the postsurgical measurements were interpreted and captured tridinensional a database. Group I and II. The data obtained from the group in which the surgical plan was performed with tridimensinoal cephalometry was compared to the data obtained from the postsurgical measurements, the information obtained from files of surgical predictions already performed with bidimensional cephalometry and with data obtained from the postsurgical measurements.

It was a mayor risk procedure so an informed consent form was made for the computerized axial tomography uptake. Tridimensional cephalomnetric tracings obtained from CAT and Simplant program using some of the measurements of the Ricketts, Steiner y Bigerstaff analysis.

Virtual simulation tridimensionla the surgery based on tridimensiona, data obtained from tridimensional cephalometry.

Fundamentos de diseño bi – tridimensional

Cephalometric bidimensional measurementsobtaned from the lateral cephalography using some measurements of the Ricketts, Steiner and Bigerstaff. In group I the types of surgery were: In group II the types of surgeries were: Age, gender and diagnosis of group I cases in whom maxillary surgery was performed Le Fort I osteotomy. Age, gender and diagnosis of group II cases in whom maxillary surgery was performed Le Fort I osteotomy.

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In group I the rank of age was from 16 to 28 years, the average was The age rank was from 15 to 26 years, the average was In group II the age rank was 15 to years old, the average was Every patient was operated by the attending physicians Tables I and II. All patients underwent surgery by doctors assigned Tables I and II. In this study tridimensional technology computer-generated tridimensional models made with the Simplant program CMF 8. The tridimensional images have fiseo applied o visualize the soft tissue diseoo bone deformities and the data manipulation permits the integration of the applied knowledge to tridimensional models.

The results from the study demonstrate that the two measuring techniques used for the surgical prediction are effective when compared to the postsurgical results on groups I and II tridimensional and bidimensional cephalometry. These results coincide with the statements from Prospil, Cousley, Smith, Kragskow et al. Group I, maxillary surgery results tridimensional cephalometry. Group I, results of maxillomandibular surgery tridimensional cephalometry.

Trifimensional II, results of maxillary surgery bidimensional cephalometry. Grupo II, results maxilo-mandibular surgery bidimensional cephalometry.

This corresponds to the studies performed by Louis et al. This study demonstrated that the precision in surgical treatment planning is greater with the use of tridimensional prediction 3D than with bidimensional method 2D. In analyzing the presurgical soft tissues and comparing them with the postsurgical results an increase in length of the upper pharynx was observed.

There was also an increase in the nasolabial angle with both methods. The present study introduced the use of computerized digital models, adding a new dimension for evaluating and planning more accurately the surgical treatment by providing presurgical tridomensional of all the facial components and analyzing facial harmony of patients with craniofacial anomalies.

Inicio Revista Mexicana de Ortodoncia Usefulness of tridimensional cephalometry in diagnosis and surgical treatment pl Usefulness of tridimensional cephalometry in diagnosis and surgical treatment planning when compared to bidimensional cephalometry in patients with craniofacial anomalies. Under a Creative Commons license. Therefore we conclude that the three-dimensional method is more accurate than the two-dimensional method in planning surgical orthognatic procedures.

Introduction Facial growth takes place in a gradual and well-ordered manner, however, there are factors that can influence or alter the facial components like bone, cartilage, the dentoalveolar complex and soft tissues. This investigation was intended to improve the treatment of maxillomandibular discrepancies by comparing the usefulness of conventional bidimensional cephalometry with tridimensional and offer greater precision by introducing new measurement techniques in the orthodontic-surgical planning and treatment.

Methods The study design was comparative between two measurement techniques before and after treatmentopen, experimental, ambispective and cross-sectional.

Fifteen cephalometric measurements were applied to both groups. It was a mayor risk procedure so an informed consent form was made for the computerized axial tomography uptake. Figures 1 to 3. Tridimensional cephalomnetric tracings obtained from CAT and Simplant program using some of the measurements of the Ricketts, Steiner y Bigerstaff analysis. Figures 4 to 6. Virtual simulation of the surgery based on the data obtained from tridimensional cephalometry.

La Fogata: Identidad corporativa bi y tridimensional

Cephalometric bidimensional measurementsobtaned from the lateral cephalography using some measurements of the Ricketts, Steiner and Bigerstaff. Age, gender and diagnosis of group I cases in whom maxillary surgery was performed Le Fort I osteotomy.

Age, gender and diagnosis of group II cases in whom maxillary surgery was performed Le Fort I osteotomy. Group I, maxillary surgery results tridimensional cephalometry. Upper pharynx Distance between the posterior contour of he soft palate and posterior pharyngeal wall Nasolabial angle degrees Case No.

Group I, results of maxillomandibular surgery tridimensional cephalometry.

Upper pharynx Distance between the posterior contour of the soft palate and the posterior phayingeal wall Nasolabial angle degrees Case No. Group II, results of maxillary yridimensional bidimensional cephalometry. Nasolabial angle degrees Case No.