ALL ON FOUR CONCEPT FOR
IMMEDIATE LOADING OF TEETH
1) The All-on-4 treatment concept,with its use of straight and angled multi-unit abutments allows for a firmly seated restoration on only four implants-
1) Two placed vertically in the anterior,
2) Two placed at an angle of up to 45 degree in the posterior region.
2)By tilting the two posterior implants,bone to implant contact is enhanced,providing optimal base suppor even with minimum bone volume.
3) Additionally tilting of implants in the maxilla allows for improved anchorage in better quality anterior bone and bicortical anchorage in the cortical bone of the sinus wall and nasal fossa.
4)Tilting of posterior implants also helps
A) Avoid vital structures such as the mandibular nerve of maxillary sinus
B)Better distribution of implants along the alveolar crest ,which optimizes load distribution and
C) Allows for a prosthesis with upto 12 teeth and minimal cantilevers .
IMMEDIATE LOADING OF TEETH
1) The All-on-4 treatment concept,with its use of straight and angled multi-unit abutments allows for a firmly seated restoration on only four implants-
 |
| UPPER ARCH WITH 4 IMPLANTS |
2) Two placed at an angle of up to 45 degree in the posterior region.
 |
| LOWER ARCH WITH 4 IMPLANTS |
2)By tilting the two posterior implants,bone to implant contact is enhanced,providing optimal base suppor even with minimum bone volume.
3) Additionally tilting of implants in the maxilla allows for improved anchorage in better quality anterior bone and bicortical anchorage in the cortical bone of the sinus wall and nasal fossa.
4)Tilting of posterior implants also helps
A) Avoid vital structures such as the mandibular nerve of maxillary sinus
B)Better distribution of implants along the alveolar crest ,which optimizes load distribution and
C) Allows for a prosthesis with upto 12 teeth and minimal cantilevers .
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