In 2007, a 97-year-old patient presented for treatment at the Geneva Dental School. His dentist had retired. Like many elderly patients, he was left without regular dental care. He lived on a geriatric ward, as he was partly dependent on help with most of the activities of daily living (ADL), such as getting dressed, washing, taking a shower, or climbing stairs. However, he was able to go to the bathroom and get up from bed on his own (ADL score 80, min. 18, max. 126; a low score signifies a high degree of dependency) (Lawton and Brody 1969). He was not bound to a wheelchair, but used a walker. Moreover, he was socially highly active—his family visited on a regular basis and he often went to the restaurant with his friend, who was some 20 years younger. His cognitive function did not seem to be impaired in a normal conversation, although his MMSE score was only 21/30 at that time (Folstein and coworkers 1975). The patient was a retired pharmacist, and his latest passion was astronomy.
Deficient vertically or deficient vertically AND horizontally
* General SAC assessment modifiers that are also part of the ERA. To avoid redundancy they are listed in this section even if no complete ERA has been made.
** Not applicable to the ERA of immediate placement cases and replaced by "Socket Integrity" listed below under "Surgical SAC Classification". For all other placement types this value is a classification determinant and listed here even if no complete ERA has been made.
Surgical SAC classification
Fully edentulous lower jaw to be rehabilitated with two or more implants
2 interforaminal implants
Horizontally and vertically sufficient
Risk of Complications
Prosthodontic SAC classification
Fully edentulous lower jaw to be rehabilitated with an implant-borne removable overdenture
Provisional Implant-Supported Prosthesis
Interim Prosthesis during Healing
Surgical SAC Modifiers
History of periodontitis or genetic predisposition
Prosthodontic SAC Modifiers
Soft Tissue Contour and Volume
General SAC Modifiers
Oral Hygiene and Compliance
Publication date: Dec 20, 2016
Last review date: Dec 14, 2020
Next review date: Dec 14, 2023
Low Anatomic Risk
Low Esthetic Risk
No Bone Augmentation
No Soft Tissue Grafting
Unguided Implant Placement
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