| Title |
In Patients in Need of Dental Implants, Scalloped Implants Will Cause More Marginal Bone Loss Compared to Non-Scalloped Implants |
| Clinical Question |
In healthy patients in need of dental implants, is the bone level maintained better around scalloped implants as compared to non-scalloped implants? |
| Clinical Bottom Line |
In patients in need of dental implants, scalloped implants will cause more marginal bone loss compared to non-scalloped implants. |
| Best Evidence |
|
| PubMed ID |
Author / Year |
Patient Group |
Study type
(level of evidence) |
| 21985286 | Den Hartog/2010 | 93 subjects with missing tooth being a maxillary incisor, canine or first premolar. | Randomized Controlled Trial | | Key results | Patients with scalloped implants experienced significantly more marginal bone loss. At 18 months, the total amount of mean marginal bone loss was 1.19 ± 0.82mm for the smooth group (95% CI: 0.89-1.49), 0.9 ± 0.57mm for the rough group (95% CI: 0.7-1.1) and 2.01 ± 0.77mm for the scalloped group (95%: 1.74-2.28). | | 21062337 | Tymstra/2010 | 40 subjects with missing tooth being a maxillary incisor, canine or first premolar. | Randomized Controlled Trial | | Key results | After one year, patients with scalloped implants showed significantly more marginal bone loss (scalloped: 2.7 ± 1.4mm, flat : 0.9 ± 0.8mm) and more inter-implant bone crest loss (scalloped: 1.8 ± 1.4mm, flat : 1.0 ± 0.9mm) compared to patients with flat implants. The difference between the treatment groups had a significance of p <0.001. | |
| Evidence Search |
“Scalloped implants”, “marginal bone loss” |
Comments on
The Evidence |
Validity:
Den Hartog and Tympstra each reported randomized controlled trials comparing marginal bone loss associated with scalloped implants or flat/smooth/rough implants. Patients were similar at start, had more than an 80% completion rate, were treated equally, received adequate follow-up, had adequate compliance and bias as well as competing interests were unlikely.
Perspective:
Even though scalloped implants caused more marginal bone loss, patient satisfaction was still high.
|
| Applicability |
The studies consisted of patients needing implants to replace incisors, canines and premolars. Although patients were satisfied with the esthetics of scalloped implants, scalloped implants are no longer available on the market and are associated with increased marginal bone loss. Thus, practitioners should consider utilizing implant designs that are easily accessible with more favorable marginal bone retention. |
| Specialty |
(General Dentistry) (Periodontics) |
| Keywords |
Scalloped implants, marginal bone loss
|
| ID# |
2627 |
| Date of submission |
02/25/2014 |
| E-mail |
Laiv@livemail.uthscsa.edu |
| Author |
Veronica Lai |
| Co-author(s) |
|
| Co-author(s) e-mail |
|
| Faculty mentor |
Guy Huynh-Ba, DDS |
| Faculty mentor e-mail |
HuynhBa@uthscsa.edu |
| |
|
Basic Science Rationale
(Mechanisms that may account for and/or explain the clinical question, i.e. is the answer to the clinical question consistent with basic biological, physical and/or behavioral science principles, laws and research?) |
| None available | |
 |
Comments and Evidence-Based Updates on the CAT
(FOR PRACTICING DENTISTS', FACULTY, RESIDENTS and/or STUDENTS COMMENTS ON PUBLISHED CATs) |
| None available | |