R_Bibb_Medical_Modelling_The_Application_of_Adv.pdf

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6.33 The guide being fi tted to the patient during surgery. Case studies 155 There were no problems experienced with sterilising or using the guides. The guides all resulted in some time saving in theatre, particularly the individual case described here. The surgical outcomes were good and turned out as planned. 6.6.6 Discussion The surgical guides described here were all deemed successful and contributed to the successful transfer of computer-aided planning to the theatre. The drilling guide was very successful being thinner, more rigid, more hardwearing and easier to sterilise than previous reported attempts that utilised SLA (21, 22). As can be seen in Fig. 6.34, the incorporation of embossed orientation markers and patient names was also benefi cial and could help prevent errors in theatre (the patient name has been deliberately obscured to respect confi dentiality). However, the osteotomy guides proved challenging. There was no previous experience or publications to build on and, given the experimental nature of the two cases undertaken, the results were encouraging. The design of the guides will be signifi cantly better in future cases based on the fi ndings of these cases. The individual case described here illustrates examples of design improvement that resulted from this research. These improvements include the better positioning of handles, smaller extents of the fi tting surfaces and avoiding potential weaknesses. For example,
156 Medical modelling 6.34 SLM drilling guide. 6.35 Areas for design improvement. in the case described here, the thin areas at the ends of the slots proved a potential weakness and the fi tting surface was larger than necessary and was reduced by the maxillofacial prosthetist in the laboratory as indicated in Fig. 6.35.
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Medical modelling
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Medical modelling The application o
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Contents Preface ix Acknowledgement
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Contents vii 6.10 Rehabilitation ap
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x Preface Therefore, it is hoped th
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1.1 Background 1 Introduction The p
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Introduction 3 Whilst this book is
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Long axis 1.1 The anatomical positi
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Introduction 7 1.3 The major refere
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Medical imaging for rapid prototypi
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2.2.3 Anatomical coverage Medical i
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2.6 X-ray scatter artefact in a CT
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2.9 Close up of noise. Medical imag
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2.12 Smooth data. Medical imaging f
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1 Medical imaging for rapid prototy
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Export data format and media 33 (NE
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3.3 Media Export data format and me
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4.1 Pixel data operations 4 Working
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4.3 Effect of a high threshold. 4.4
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Working with medical scan data 41 4
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Working with medical scan data 45 S
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4.4 Two-dimensional formats Working
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Working with medical scan data 51 I
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4.18 Close up view showing facets.
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5.1 Background to rapid prototyping
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Physical reproduction 61 developing
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Physical reproduction 63 will displ
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Physical reproduction 65 As there i
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Physical reproduction 67 However, t
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Data quality Physical reproduction
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Physical reproduction 71 In some ca
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Physical reproduction 73 Overhangin
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Physical reproduction 75 5.10 SL mo
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Physical reproduction 77 5.12 Selec
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5.13 A Perfactory ® model of a man
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5.15 FDM TM model of the mandible.
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Table 5.3 Advantages and disadvanta
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Physical reproduction 85 In medical
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Table 5.5 Advantages and disadvanta
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5.7 Jetting head technology 5.7.1 P
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5.23 ThermoJet ® model of the mand
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5.24 LOM TM model of the mandible.
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5.26 LOM TM model of a partial face
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6 Case studies The following case s
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IMPLEMENTATION 6.1 Implementation c
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Post model Hospital department Pati
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Case studies 103 When using this so
Page 118 and 119: Case studies 105 (Mimics). Image ma
Page 120 and 121: Case studies 107 full co-operation
Page 122 and 123: Case studies 109 communication and
Page 124 and 125: • to achieve patient’s agreemen
Page 126 and 127: 6.2.4 Rapid prototyping technologie
Page 128 and 129: Case studies 115 not be suitable. A
Page 130 and 131: Case studies 117 scale of the data
Page 132 and 133: 6.7 SL model with signifi cant stai
Page 134 and 135: Case studies 121 6.9a Smooth surfac
Page 136 and 137: Case studies 123 slice editing of t
Page 138 and 139: Case studies 125 6.12 Removal of bo
Page 140 and 141: Case studies 127 18. Williams R J,
Page 142 and 143: Case studies 129 and passing throug
Page 144 and 145: Case studies 131 6.14 The effect of
Page 146 and 147: Case studies 133 6.18 The block ove
Page 148 and 149: Case studies 135 create template (3
Page 150 and 151: 6.4.3 Materials and methods Case st
Page 152 and 153: 6.22 Resected bone compared to SLA
Page 154 and 155: Case studies 141 9. Robinson R P, C
Page 156 and 157: Case studies 143 multi-plane reform
Page 158 and 159: Case studies 145 6.25 The custom ti
Page 160 and 161: Case studies 147 6.28 Plain radiogr
Page 162 and 163: Case studies 149 reproduction of ex
Page 164 and 165: Case studies 151 manner. The softwa
Page 166 and 167: Case studies 153 surface on which t
Page 170 and 171: Case studies 157 The more fundament
Page 172 and 173: Case studies 159 25. Sarment D P, A
Page 174 and 175: 6.37 Stereolithography models. 6.38
Page 176 and 177: Case studies 163 6.41 Merged pre- a
Page 178 and 179: REHABILITATION APPLICATIONS 6.8 Reh
Page 180 and 181: 6.8.3 Methods Preliminary trial of
Page 182 and 183: Case studies 169 prototyping system
Page 184 and 185: Case studies 171 The aperture for t
Page 186 and 187: Case studies 173 7. Manners C R (19
Page 188 and 189: Case studies 175 during the acquisi
Page 190 and 191: 6.46 Smoothing the data (exaggerate
Page 192 and 193: 6.49 Plaster fi lled SL mould. Case
Page 194 and 195: Case studies 181 diffi cult for hos
Page 196 and 197: Case studies 183 extremely diffi cu
Page 198 and 199: Case studies 185 back as shown in F
Page 200 and 201: 6.54 The result of the Boolean subt
Page 202 and 203: 6.56 The SLA model of the plate. Ca
Page 204 and 205: 6.59 SLA implant on SLA model of de
Page 206 and 207: Case studies 193 In the near future
Page 208 and 209: Case studies 195 anatomical forms a
Page 210 and 211: Case studies 197 Establishing the c
Page 212 and 213: Case studies 199 6.63 The rough (a)
Page 214 and 215: Case studies 201 The fi nal prosthe
Page 216 and 217: Case studies 203 grating the techno
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Case studies 205 6.12 Rehabilitatio
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Case studies 207 • Data capture N
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Case studies 209 placement of two i
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Case studies 211 technique that has
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Case studies 213 6.72 The bar locat
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Case studies 215 Stereolithography
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Case studies 217 authors intend to
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Case studies 219 17. Kau C H, Zhuro
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Case studies 221 310, Sainte-Foy, Q
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6.77a The physically surveyed cast.
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Creation of relief Case studies 225
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6.81 Construction curves. Case stud
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6.83 The support structure in 3D Li
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Finishing Case studies 231 The cast
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Case studies 233 6.14 Rehabilitatio
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6.86 The RPD framework designed in
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Second experiment Case studies 237
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Case studies 239 6.90 Close up view
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Table 6.2 Process steps and associa
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Case studies 243 9. Budtz-Jorgensen
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Case studies 245 micro-computed tom
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Case studies 247 supports became av
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Case studies 249 However, the probl
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6.96 Model of one of the samples su
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6.15.9 Reference Case studies 253 1
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Case studies 255 mummies. Mimics so
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Case studies 257 6.101 3D reconstru
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Case studies 259 6.103 The stages o
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6.16.5 Conclusions Case studies 261
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Case studies 263 the patient’s de
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Case studies 265 and sharp radii re
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Suitable technologies identifi ed C
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Case studies 269 6.107 A close-up p
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6.110 The selected region of facial
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Case studies 273 patterns were buil
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Case studies 275 7. Cheah C M, Chua
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Future developments 277 slices to b
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Future developments 279 ments that
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Glossary and explanatory notes 281
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Glossary and explanatory notes 283
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Further reading on anatomy Last’s
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Fundamentals of Facial Prosthetics
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Rapid Prototyping and Tooling Resea
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Contacts 3D Systems 26081 Avenue Ha
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Marcam Engineering GmbH Fahrenheits
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3D Lightyear TM 229, 247, 249-51, 2
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Removable Partial Denture 219-20, 2
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4.10 A three-dimensional shaded ima
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6.41 Merged pre- and post-operative
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