Cephalometry A Color Atlas and Manual - part 4 pptx

... anteri- or cranial base (S-N) plane is automatically computed. Virtual Definition of the Anterior Cranial Base (S-N) Plane The anterior cranial base (S-N) plane is a plane that passes the Nasion and ... Sella landmarks and is perpen- dicular to the virtual lateral cephalogram (Fig. 3.27). Fig. 3.27. Anterior cranial base (S-N) plane.Virtual lateral cephalogram linked to the 3-D hard ti...

Ngày tải lên: 11/08/2014, 22:22

... with the 3-D data, taking into ac- count the geometrical relationships. In this way ,a com- bined 2-D and 3-D approach opens the way towards re- liable and repeatable 3-D analysis of the head. Section 3 ... availability of 2-D lateral and frontal cephalograms is beneficial to indicate landmarks accurately and repeatably in the 3-D scene. Therefore, the geometrical relationship betwee...

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... (patient K.C.) CHAPTER 2 28 Basic Craniofacial Anatomical Outlines Skull – Paramedian Sagittal View Fig. 2.8. a Paramedian view of the skull with the mandible and calvaria removed (adult cadaver ... Zygomatic arch; 10 Medial nasal concha; 11 Inferior nasal concha;12 Nasal septum;13 Palatine bone; 14 Maxillary tuberosity;15 Upper right third molar;16 Body of mandible;17 Mandibular canal;1...

Ngày tải lên: 11/08/2014, 22:22

... ex- cluded and only angular and proportional measure- ments are employed. Spiral CT-based 3-D cephalometry using standard- ized CT scanning protocols (Chap. 1) has the great ad- vantage that all measurements ... generation of virtual cephalograms, easy and accurate location of the Sella and Nasion landmarks, subsequently automatic definition of a horizontal plane according to Proffi...

Ngày tải lên: 11/08/2014, 22:22

... K.C.) CHAPTER 4 1 74 3-D Cephalometric Hard Tissue Landmarks 4. 2 Set-up of 3-D Cephalometric Hard Tissue Landmarks Fig. 4. 135 a d. Set-up of 3-D cephalometric hard tissue landmarks.(3-D CT, patient ... to amalgam artefacts, definition of Zygion r and Zygion l land- marks is not possible on the exocranial skull base view (3-D CT,patient A. G.) CHAPTER 4 152 3-D Cephalometric Hard...

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... facial soft tissue units (forehead, nasal, periorbital, midface and mandible) are described in detail. Additionally, ear- and head- related landmarks are listed at the end of the chapter because ... set-up of a 3-D cephalometric reference system (Chap. 3) and the automatic genera- tion of measurements (Chap. 7). The important dis- advantages of spiral-CT based 3-D cephalometry are t...

Ngày tải lên: 11/08/2014, 22:22

... ap- proach presents several advantages. It allows automat- ic generation of a huge amount of real-size cephalo- metric data that are immediately available for clinical decision making or statistical ... 6. 14. Maxillary plane (3-D soft tissue representation,patient K.C.) CHAPTER 7 250 3-D Cephalometric Analysis Fig. 7. 14 a, b. Right and left mandibular vertical ramus,body and total m...

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... distance n-obi l Left lower naso-aural distance sn-obs r Right upper subnasale-aural distance sn-obs l Left upper subnasale-aural distance sn-obi r Right lower subnasale-aural distance sn-obi l Left ... subnasale-aural distance gn-obs r Right upper gnathion-aural distance gn-obs l Left upper gnathion-aural distance gn-obi r Right lower gnathion-aural distance gn-obi l Left lower gnathion-aura...

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... mandibular vertical ra- mus and gonial angle by unilateral DO was planned virtually and performed via an intra-oral approach. The 3-D virtual scene approach allowed definition of the ideal position and ... B.R.) a bc CHAPTER 8 3 04 3-D Cephalometry and Craniofacial Growth Fig. 8.16 a d. Superimposition of the mandibles of the cadaver skulls of a newborn ,a 6-year-old child an...

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... (13 7-1 57 gestational days) in the pigtailed macaque (Macaca nemestrina) craniofacial complex: an application using three-dimensional coor- dinate data and finite element scaling analysis. Anat Rec. ... Pediatric cran- iofacial surgery: comparison of milling and stereolithography for 3D model manufacturing. Pediatr Radiol. 1992; 22 :45 8 -4 60 Kobayashi T, Ueda K, Honma K, Sasakura H,...

Ngày tải lên: 11/08/2014, 22:22