The document discusses diagnostic casts, radiographs, and photographs used in evaluating a patient for dental prosthetics. Diagnostic casts provide information about hard and soft tissue anatomy without the patient present and allow measurement of arch dimensions. Radiographs show bone resorption patterns, impacted teeth, thickness of soft tissue, and location of anatomical structures to inform impression technique and treatment planning. Photographs and examination of previous dentures provide information on aesthetics, occlusion, retention, and home care. Together these records facilitate patient-specific treatment planning for prosthetics.

1. Diagnostic cast, Radiographs
Dr Ayesha Sadaf

2. ONE MINUTE PAPER

3. Q : A 60 year old male patient came for replacement of missing teeth.
On intraoral examination you found out patient is edentulous. His
maxillary residual ridge is low well rounded and mandible has knife edge
ridge. Maxillary and mandibular arches belong to which order of A
Atwoods classification?
a) Maxilla order 4 and mandible order 5
b)Maxilla order 5 and mandible order 4
c)Maxilla order 1 and mandible order 2
d) Maxilla order 6 and mandible order 7

4. Pre Extraction records
• Patient photographs
• Diagnostic casts
• Radiographs
• Pic of close relatives
• Previous dentures

5. Patients Photographs

6. DIAGNOSTIC CASTS
A diagnostic dental cast is a
cast/ model of a person’s
teeth that a dental
professional uses as a guide
in the application of
corrective or restorative
dentistry. Such diagnostic
casts are often referred to
as study models.

7. STUDY MODEL
• A study model dental cast
is
a positive reproduction of
the form of tissues of the
upper jaw or lower jaw,
which is made in an
impression and over which
denture bases or other
dental restorations may be
fabricated.

8. DIAGNOSTIC CAST
• Obtained from primary
impression.
• It allows the evaluation of
hard and soft tissue
anatomy without the
presence of the patient.
Diagnostic casts provide
the base from which
custom impression trays
are fabricated.

9. Parts of study cast

10. Significance of diagnostic casts
It allows the evaluation of hard and soft
tissue anatomy without the presence of
the patient

11. SIGNIFICANCE OF DIAGNOSTIC CAST
Measurement of arch
width and length

12. Patients previous dentures
• Gives information
about denture hygiene
• Maintenance at home
(home care)
Material of denture

13. Patients previous dentures
occlusion
aesthetics
Shade of teeth
Tooth
arrangement

14. Patients previous dentures
retention
stability
support

15. Diagnostic Radiographs
To Understand
residual ridge
morphology
Tooth roots and
pathologies

16. Pattern of Bone Resorption

17. MAXILLOMANDIBULAR
RELATIONS
IMPACTED TEETH
PATTERN OF BONE
RESORPTION

18. • Show the relative thickness of the submucosa covering the bone in
edentulous regions,
• the location of the mandibular canal, and
• the mental foramina in relation to the basal seat for dentures
More superficial
location of
mental
foramen, more
will be the bone
resorption

19. Gives an idea
about quality of
bone
More
radiopaque
bone, denser it
will appear on
radiograph

20. Cone beam computed tomography
3 dimensional View

21. Diagnostic casts , Radiographs and photographs helps in selecting
impression technique, planning pre-prosthetic surgery and selection of
teeth., ultimately formulating a treatment plan.

22. Patient specific care

23. How to read panaromic radiograph