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1. Good morning
INDIAN DENTAL ACADEMY
Leader in continuing dental education
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2. Journal of Prosthetic Dentistry 2010;103:53-57
Claudine, Alain and Christophe,
Paris Descartes University, Paris, France
Radiographic and surgical guide fabrication for
implant-retained mandibular overdenture.
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3. introduction
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4. www.indiandentalacademy.com

5. International Congress of Oral Implantologists (ICOI),
defines the surgical guide as-(dental implantology
update oct 2009)
A guide , derived from the diagnostic wax-up,
used to assist in the preparation for and placement of
dental implant, it dictates drilling position and
angulations.
Synonyms-
Surgical template, Surgical guide, Surgical device,
Surgical jig, Implant positioning device or
Surgical stent.
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6.  Ideally the surgical guide should possess the
following characteristics-(dental implantology
update aug 2009)
1-Simple and cost effective to fabricate,
2-Stable and retentive in surgical field
3-Easy access of drill / guide pins or
osteotomes intra-operatively;
4-Ability to translate pre-surgical work up
information accurately to operating field.
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7. Technique –
Duplication of the mandibular complete denture,by
polyvinyl siloxane impression material,
Use the impression as a mold for the radiographic guide,
Radiographic guide is prepared by mixing Barium
Sulfate powder(10 to 15% by weight) with acrylic
resin powder before incorporating the monomer,
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8. Index desired emergence implant sites in the
position of the lateral incisor, canine and first
premolar areas,
Drill 6 grooves with a 2mm twist drill parallel
to each other,
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9. Add autopolymerizing acrylic resin on the
occlusal surface of the duplicate prosthesis to
create an accurate record of the occlusion and to
ensure correct placement of the radiographic
guide,
Select optimal implant site from the radiographic
images
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10. Drill the guide according to the planned implant
position and orientation with 3 mm twist drill with
an internal diameter of 2.1 mm in the selected
position to serve as drilling guide,
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11. Use the surgical template to guide the 2mm twist
drill through the cortical bone for each implant site,
direction can be checked by direction indicator
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12.  Used as a custom tray-
surgical template can be used as custom tray for
final impression after modification of the intaglio
surface of the duplicate denture
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13.  Advantages –
1-There is no damage to the existing
prosthesis,
2-Cost effective
3- Material for fabrication easily available,
4-Easy to fabricate,
5-Can be easily used for resorbed ridges.
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14.  Computer generated surgical guide-dental imp
update oct 2009
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15. Poitras surgical technique-
 Describe by Poitras Y. in the year 1998,
 Used terminal hinge axis as a reference to
place implant in mandible with the help of
surgical guide in maxilla.
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16. JPD 2008;100;323-325
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17. THE BITE REGISTRATION TECHNIQUE
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18. JPD 2001;85;504-508
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19. Thank
you For more details please visit
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