By Thomas J. Balshi, D.D.S., F.A.C.P.
and Glenn J. Wolfinger, D.M.D., F.A.C.P.
Table 1 - Demographic Data
| AGE | SMOKER? | |||||
| SEX | COUNT | AVERAGE | STD DEV | RANGE | YES | NO |
| Male | 17 | 59.1 | 12.7 | 34-75 | 2 | 15 |
| Female | 17 | 64.7 | 10.3 | 39-79 | 0 | 17 |
| TOTAL | 34 | 62.0 | 11.7 | 34-79 | 2 | 32 |
Table 2 - Anatomic Distribution of Implants Placed
| Region | Total |
| Ant. Maxilla | 45 |
| Post. Maxilla | 73 |
| Maxilla | 118 |
| Ant. Mandible | 46 |
| Post. Mandible | 63 |
| Mandible | 109 |
| Total | 227 |
Table 3 - Lengths and Diameters of Implants Placed
| Length | Diameter | ||||
| Length (mm) | Count | Diameter (mm) | Count | ||
| Successful | Failures | Successful | Failures | ||
| 7.0 | 7 | 3.0 | 2 | ||
| 8.0 | 3 | 3.75 | 164 | 7 | |
| 8.5 | 2 | 4.0 | 24 | 7 | |
| 10 | 54 | 6 | 5.0 | 13 | |
| 12 | 3 | Unknown | 10 | ||
| 13 | 54 | 4 | Total | 213 | 14 |
| 15 | 54 | 1 | |||
| 18 | 20 | 3 | |||
| 20 | 6 | ||||
| Unknown | 10 | ||||
| Total | 213 | 14 | |||
Table 4 - Characterization of Failed Implants
| Sex | Age | Position | Diameter (mm) | Length (mm) | Healing Period (mo) | Cause and Status |
| F | 76 | 12 | 3.75 | 13 | 6 | Surgical: soft tissue grew in between the implant and bone. |
| F | 70 | 16 | 4.0 | 18 | 8 | Surgical: Failed to integrate; immediate load |
| F | 70 | 18 | 3.75 | 10 | 2.75 | Surgical: Failed to integrate; immediate load |
| F | 70 | 27 | 3.75 | 15 | Surgical: Failed to integrate | |
| F | 70 | 29 | 4.0 | 13 | Surgical: Failed to integrate; immediate load | |
| F | 70 | 30 | 4.0 | 13 | 2.75 | Surgical: Failed to integrate |
| M | 66 | 5 | 4.0 | 18 | 12.75 | Surgical: Failed to integrate |
| M | 66 | 8 | 4.0 | 10 | 12.75 | Surgical: Failed to integrate |
| M | 66 | 9 | 4.0 | 10 | 12.75 | Surgical: Failed to integrate |
| M | 66 | 14 | 4.0 | 18 | 12.75 | Surgical: Failed to integrate |
| M* | 65 | 18 | 3.75 | 10 | 3.75 | Surgical: Failed to integrate |
| M** | 65 | 19 | 3.75 | 10 | 3.75 | Surgical: Failed to integrate |
| M | 53 | 29 | 3.75 | 10 | 2.5 | Surgical: Failed to integrate |
| M | 75 | 4 | 3.75 | 13 | 4.75 | Post-restoration failure: Bruxing and clenching |
* Removed 7.5 months after exposure; never loaded.
** Removed 2 weeks after exposure; never loaded.
*** Months post-restoration at time of failure
Table 5 - Patient's Results By Stage Achieved
| Number of | ||||
| Stage | Patients | Implants | Successful Implants | Failed Implants |
| Surgery | 34 | 227 | ---- | ---- |
| Exposed, Failure | 6* | 13 | 0 | 13 |
| Exposed, Successful, Not Attached | 5 | 38 | 38 | 0 |
| Attachment completed | 29 | 176 | 175 | 1 |
* One patient had failed implants at exposure and other implants were successful at uncovering.
Ask a Dental Question or Request Information | Email Us | Disclaimer
Copyright 2008 Pi Dental Center (Prosthodontics Intermedica).