ORAL HEALTH EVIDENCE-BASED PRACTICE PROGRAM
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| Title |
Digital Models Are As Accurate As Plaster Models Even For Space Analysis |
| Clinical Question |
Are digital models as accurate as plaster casts when determining space analysis? |
| Clinical Bottom Line |
It was found that digital modes are clinically acceptable, if not quite as accurate as plaster casts, for space analysis. (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) 12828439 | Zilberman/2003 | 20 setups of various malocclusions using artificial teeth | Comparison Study | | Key results | Compared plaster casts were compared to Orthocad and Orthocad was found to be clinically acceptable | | #2) 19577140 | Leifert/2009 | 25 Class I crowded patients | Comparison Study | | Key results | Compared Orthocad to standard models and found no significant difference on mandibular casts, and a small (.4mm) difference on maxillary casts. | |
| Evidence Search |
PubMed: “Orthodontic space analysis” |
Comments on
The Evidence |
These two modest studies show that Orthocad’s digital models are clinically acceptable for determining space analysis. |
| Applicability |
When available, digital models may be used with approximately the same accuracy as plaster casts (without all the time and labor). |
| Specialty/Discipline |
(Public Health) (Orthodontics) (Pediatric Dentistry) (Prosthodontics) |
| Keywords |
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| ID# |
275 |
| Date of submission: |
11/11/2009 |
| E-mail |
McKennaK@uthscsa.edu |
| Author |
Kelly McKenna, DDS |
| Co-author(s) |
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| Co-author(s) e-mail |
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| Faculty mentor/Co-author |
Clarence C. Bryk, DDS, MS |
| Faculty mentor/Co-author e-mail |
BRYKC@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?) |
post a rationale |
| None available | |
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Comments and Evidence-Based Updates on the CAT
(FOR PRACTICING DENTISTS', FACULTY, RESIDENTS and/or STUDENTS COMMENTS ON PUBLISHED CATs) |
post a comment |
by Ketu Lincoln (San Antonio, TX) on 07/08/2012
I conducted a PubMed search on this topic July 2012. A systemic review published in 2011 (PMID: 21516170
) references two additional articles (18, 19) that state the same conclusion and now have furthered the studies to superimpose digital dental models with 3D photographs/CBCT to assess dental/skeletal/and soft tissue treatment outcomes. | by Lindsey Fraser (San Antonio, TX) on 04/02/2012
I searched PubMed on this topic in April 2012. A systematic review was published in 2011 with the same results that digital models are as accurate as plaster models. PubMed ID 21205164.
| by Julio De la Fuente (San Antonio TX) on 07/13/2011
An updated comparison study from 2010 has come to the same conclusion. Digital models are just as accurate as plaster models. Eur J Orthod. 2010 Oct;32(5):589-95. Epub 2010 Feb 17 PMID: 20164126
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