The Development of a New Method of Cephalometric and Study Cast Mensuration with a Computer Controlled, Video Image Capture System. Part II: Study Cast Mensuration

A computerized system for mensuration of dental casts, developed at the Royal Berkshire Hospital in Reading was tested against a conventional manual method and a computer controlled reflex microscope. Systematic errors, calibration, and handling aspects are discussed. Results showed that the computerized system provided data which while statistically different, were clinically comparable with the same measurements carried out using conventional manual or digitizing techniques. The results indicated that future research is required with respect to object illumination for all indirect techniques.

[1]  D. Henderson,et al.  The assessment and management of bony deformities of the middle and lower face. , 1974, British journal of plastic surgery.

[2]  A G Huddart,et al.  The application of computers to the study of maxillary arch dimensions , 1971, British Dental Journal.

[3]  C W NEFF,et al.  Tailored occlusion with the anterior coefficient. , 1949, American journal of orthodontics.

[4]  S. Berkowitz,et al.  Stereophotogrammerty of serial casts of cleft palate. , 1968, The Angle orthodontist.

[5]  H Boersma,et al.  Three-Dimensional Analysis of Dental Casts by Means of the Optocom , 1972, Journal of dental research.

[6]  H N NANCE,et al.  The limitations of orthodontic treatment; diagnosis and treatment in the permanent dentition. , 1947, American journal of orthodontics.

[7]  C L Lavelle,et al.  Maxillary and mandibular tooth size in different racial groups and in different occlusal categories. , 1972, American journal of orthodontics.

[8]  B S Savara,et al.  A new data acquisition method for measuring dentitions and tests for accuracy. , 1969, American journal of physical anthropology.

[9]  B S Savara,et al.  An analysis of permanent mesiodistal crown size. , 1971, American journal of orthodontics.

[10]  D. Claridge,et al.  Evaluating tooth size in premolar-extraction cases. , 1973, American journal of orthodontics.

[11]  S. Berkowitz.  Stereophotogrammetric analysis of casts of normal and abnormal palates. , 1971, American journal of orthodontics.

[12]  I J SINGH,et al.  A METHOD FOR MAKING TOOTH AND DENTAL ARCH MEASUREMENTS. , 1964, Journal of the American Dental Association.

[13]  C D Stephens,et al.  The reflex optical plotter. A preliminary report , 1981, British Dental Journal.

[14]  B S Savara,et al.  Applications of photogrammetry for quantitative study of tooth and face morphology. , 1965, American Journal of Physical Anthropology.

[15]  W. Stuart Hunter,et al.  Errors and Discrepancies in Measurement of Tooth Size , 1960, Journal of dental research.

[16]  J F Cleall,et al.  On-line computer system for the analysis of cephalometric radiographs. , 1976, The Angle orthodontist.

[17]  C D Stephens,et al.  Three-dimensional measurement: the accuracy and precision of the Reflex Microscope. , 1988, The British journal of oral & maxillofacial surgery.

[18]  N R Robertson,et al.  The photography of orthodontic study models. , 1984, European journal of orthodontics.

[19]  M M Kuftinec,et al.  A biometric study of tooth size and dental crowding. , 1981, American journal of orthodontics.

[20]  Hays N Nance,et al.  Mixed dentition diagnosis and treatment , 1947 .

[21]  C D Stephens,et al.  Three-dimensional measurement: the accuracy and precision of the reflex metrograph. , 1988, The British journal of oral & maxillofacial surgery.

[22]  Burke Ph,et al.  Stereophotogrammetric measurement of normal facial asymmetry in children. , 1971 .

[23]  Edward M. Mikhail.  Holograms And Holographic Stereomodels: Their Mensuration And Mapping , 1974, Other Conferences.

[24]  M N Lowey,et al.  The Development of a New Method of Cephalometric and Study Cast Mensuration with a Computer Controlled, Video Image Capture System: Part I , 1993, British journal of orthodontics.

[25]  L W White,et al.  Accurate arch-discrepancy measurements. , 1977, American journal of orthodontics.

[26]  S Arridge,et al.  Three dimensional digitization of the face and skull. , 1985, Journal of maxillofacial surgery.

[27]  F. H. Beard,et al.  Stereophotogrammetry of the face. A preliminary investigation into the accuracy of a simplified system evolved for contour mapping by photography. , 1967, American journal of orthodontics.

[28]  C L Lavelle,et al.  Anglo-Saxon and Modern British Teeth , 1968, Journal of dental research.

[29]  H N NANCE,et al.  The limitations of orthodontic treatment; diagnosis and treatment in the permanent dentition. , 1947, American journal of orthodontics.

[30]  W J Houston.  The application of computer aided digital analysis to orthodontic records. , 1979, European journal of orthodontics.

[31]  L. Lebret,et al.  Growth Changes of the Palate , 1962 .

[32]  Martin Bland,et al.  An Introduction to Medical Statistics , 1987 .

[33]  Hechter Fj.  Symmetry and dental arch form of orthodontically treated patients. , 1978 .

[34]  R H Biggerstaff,et al.  The basal area of posterior tooth crown components: the assessment of within tooth variations of premolars and molars. , 1969, American journal of physical anthropology.

[35]  Hays N Nance,et al.  The limitations of orthodontic treatment , 1947 .

[36]  Beard Lf,et al.  Evolution of a system of stereophotogrammetry for the study of facial morphology. , 1967 .

[37]  P H Burke,et al.  Evolution of a system of stereophotogrammetry for the study of facial morphology. , 1967, Medical & biological illustration.

[38]  P H Burke.  Stereophotogrammetric measurement of normal facial asymmetry in children. , 1971, Human biology.

[39]  Cleall Jf,et al.  Coordinate analysis applied to orthodontic studies. , 1971 .

[40]  G. Korkhaus,et al.  A new orthodontic symmetrograph , 1930 .

[41]  J A Cooper,et al.  Changes in arch form and dimensions of cleft patients. , 1971, American journal of orthodontics.

[42]  S R Arridge,et al.  Three-dimensional visualization of the face and skull using computerized tomography and laser scanning techniques. , 1987, European Journal of Orthodontics.

[43]  Lennart Lysell,et al.  A biometric study of occlusion and dental arches in a series of medieval skulls from northern sweden , 1958 .

[44]  A A Lowe,et al.  Operational performance of the Reflex Metrograph and its applicability to the three-dimensional analysis of dental casts. , 1983, American journal of orthodontics.

[45]  Houston Wj,et al.  A comparison of the reliability of measurement of cephalometric radiographs by tracings and direct digitization. , 1982 .

[46]  S N Bhatia,et al.  Operational Performance of the Travelling Microscope in the Measurement of Dental Casts , 1987, British journal of orthodontics.

[47]  E A BeGole,et al.  A computer system for the analysis of dental casts. , 1981, The Angle orthodontist.

[48]  S. Linder-Aronson,et al.  Reproducibility of cephalometric landmarks and errors of measurements of cephalometric cranial distances. , 1974, The Angle orthodontist.

[49]  P J Keating,et al.  The Holographic Storage of Study Models , 1984, British journal of orthodontics.