What they are
Short implants are shorter than standard implants and are used where bone height is limited.1 The ITI Group 1 consensus (2018) studied posterior implants of 6 mm or less.1 A 2026 meta-analysis studied implants of 8 mm or less in the upper back jaw.2
Why they are used
Where bone height is limited, the options include adding bone (a sinus lift or vertical graft) or using a shorter implant.12 The ITI consensus concluded that short implants are a valid option to avoid the added surgery and morbidity of augmentation procedures.1
Results: 6 mm or less
The ITI Group 1 consensus compared short and standard implants over 1 to 5 years.1
| Implant | Survival range |
|---|---|
| Short (6 mm or less) | 86.7 to 100 percent |
| Standard | 95 to 100 percent |
Short implants showed higher variability and lower predictability in survival.1 The risk ratio for failure was 1.24 and was not statistically significant.1 The same consensus found only insignificant differences between tapered and non-tapered implant designs.1
Results: 8 mm or less vs sinus lift
A 2026 meta-analysis of 8 randomized trials compared short implants with standard implants placed with a sinus floor elevation in the upper back jaw.2
- Implant failure did not differ between the groups.2
- Short implants had 0.15 mm less bone loss.2
- The authors noted that sinus lift is linked to more surgical morbidity, longer treatment time and higher cost.2
Questions to ask
- Is a short implant an option in place of a graft or sinus lift.
- How long and how wide is the planned implant.
- How the bite force will be shared if several short implants are used.
General information about dental implants. Treatment decisions are made with a licensed dentist.
Sources
- Jung RE et al. Group 1 ITI Consensus Report: implant length, design and medications. Clin Oral Implants Res 2018. pubmed.ncbi.nlm.nih.gov
- Wang C et al. Short implants vs standard implants with sinus floor elevation: systematic review of RCTs. J Stomatol Oral Maxillofac Surg 2026. pubmed.ncbi.nlm.nih.gov
