Orthodontic separators reduce extraction time and pain in premolar removal
Split-mouth trial shows orthodontic separators reduce extraction time and pain in routine premolar extractions for orthodontists.
A split-mouth randomised trial in 20 orthodontic patients found that elastomeric separators placed five days before premolar extraction shortened operative time, reduced complications, and decreased post-operative pain compared to standard extraction alone.
How separators improve extraction outcomes
The study examined 80 extraction sites across four premolars per patient. In each arch, one premolar received elastomeric separators while the contralateral tooth served as control. Extraction time was significantly faster in the separator group, with a paired difference of 5.90 seconds (p = 0.03). Two root fractures with buccal cortical involvement occurred only in controls. Separator sites showed better wound healing on post-operative day three and day seven using Landry's index, and lower pain scores on post-operative day three (p <0.01).
Why separators offer a practical alternative
Atraumatic extraction techniques aim to minimise tissue injury, preserve alveolar bone, and reduce post-operative discomfort. Although periotomes and physics forceps are effective, they require additional armamentarium. Orthodontic separators provide a simple, low-cost adjunct that increases premolar mobility before extraction. The technique requires no additional instruments and uses materials already available in orthodontic practices, making it practical for routine clinical use.
Frequently asked questions
How do orthodontic separators improve premolar extraction?
Elastomeric separators placed five days before extraction increase tooth mobility by creating space around the root. This reduces the force needed for removal, shortening extraction time by an average of 5.90 seconds and decreasing intra-operative complications.
What complications were reduced with separator-assisted extraction?
The separator group experienced fewer root fractures with cortical involvement. The trial recorded two root fractures with buccal cortical involvement in control teeth but none in separator-treated teeth.
When should separators be placed before extraction?
Elastomeric separators should be placed five days before the scheduled extraction to allow sufficient time for increased tooth mobility and periodontal ligament adaptation.
How does separator-assisted extraction compare to other atraumatic techniques?
Unlike periotomes and physics forceps, which require additional instrumentation, orthodontic separators are a simple, low-cost adjunct using materials already available in orthodontic practices. They reduce operative time and post-operative pain without extra armamentarium.
What post-operative benefits do separators provide?
Separator sites showed significantly better wound healing scores on post-operative day three and day seven using Landry's index, and lower pain scores on post-operative day three compared to control sites.
