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Title Post-Orthodontic Space Retention In Congenitally-Missing Maxillary Lateral Patients
Clinical Question How should an edentulous lateral incisor space be prepared and maintained in preparation for restoration using a lateral incisor implant?
Clinical Bottom Line Adequate space should be attained during orthodontic therapy to achieve proper M-D width dimension of the lateral incisor as well as properly retained using fixed appliance means to prevent root relapse into the edentulous space. (See Comments on the CAT below)
Best Evidence (you may view more info by clicking on the PubMed ID link)
PubMed ID Author / Year Patient Group Study type
(level of evidence)
#1) 20152659Olsen/2010Records ot 94 patients with at least one missing lateral incisorRetrospective Study
Key results6.3mm of inter-coronal distance and 5.7mm of inter-radicular distance between the edentulous site’s adjacent central incisor and canine is recommended to ensure sufficient space prior to implant placement. Bonded restorations such as a resin-bonded bridge or bonded wire will minimize tooth/root relapse into the edentulous site during retention.
Evidence Search "maxillary"[All Fields] AND lateral[All Fields] AND ("incisor"[MeSH Terms] OR "incisor"[All Fields]) AND implants[All Fields] AND "relapse"[All Fields]
Comments on
The Evidence
Radiographs were used to determine the inter-coronal and inter-radicular distances prior to implant placement. With the recent incorporation of CBCT into diagnostic imaging, a more reliable conclusion might be determined if this technology were to be used rather than traditional radiographs.
Applicability This information is helpful in communicating with the restorative specialist/dentist in preparing the patient for restoration of a missing lateral incisor. Adequate space maintenance is also critical to prevent relapse and further treatment prior to implant placement.
Specialty/Discipline (General Dentistry) (Oral Surgery) (Orthodontics) (Pediatric Dentistry) (Periodontics) (Prosthodontics) (Restorative Dentistry)
Keywords Congenitally missing teeth, Fixed retainer, Maryland Bridge, Implant
ID# 742
Date of submission: 11/16/2010spacer
E-mail riveraj7@uthscsa.edu
Author Jaime Rivera, DDS
Co-author(s) e-mail
Faculty mentor/Co-author Ridley Ross, DDS
Faculty mentor/Co-author e-mail rossr@uthscsa.edu
Basic Science Rationale
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post a rationale
None available
Comments and Evidence-Based Updates on the CAT
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by Blake Hoedebecke, DDS and Meredith Key, DDS (San Antonio, TX) on 08/08/2013
A PubMed search on this topic was completed in August 2013. The publication listed in the CAT is the most recent and the highest level of evidence related to this clinical question.

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