Non-Cochrane · intervention · PM42604397

Closed Versus Open Surgical Exposure of Palatally Displaced Canines: A Systematic Review and Meta-Analysis.

Aldoseri Yousef T, Alkhawari Dalal, Ashour Yousef, et al. · Cureus · 2026 · PubMed · doi:10.7759/cureus.112792

Findings

23 findings

Population
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Overall complications
Surgical-orthodontic management
RR 0.88 [0.21, 3.66]
GRADE not reported
3 studies · 243 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
7-10 days · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Færøvig 2025
SMD -0.26 [-0.54, 0.02]
GRADE not reported
3 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Analgesic consumption (patients using analgesics)
7-10 days · Surgical-orthodontic management · Follow-up 7-10 days
RR 0.83 [0.68, 1.02]
GRADE not reported
4 studies · 375 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Minor complications
Surgical-orthodontic management · Minor complications
RR 1.71 [0.71, 4.12]
GRADE not reported
2 studies · 172 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Canine eruption time (months)
Surgical-orthodontic management
MD 3.37 [2.02, 4.73]
GRADE not reported
2 studies · 162 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Major complications
Surgical-orthodontic management · Major complications
RR 0.96 [0.14, 6.38]
GRADE not reported
2 studies · 172 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
7-10 days · Surgical-orthodontic management · Follow-up 7-10 days
SMD -0.65 [-1.46, 0.17]
GRADE not reported
4 studies · 375 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Surgical time (minutes)
Surgical-orthodontic management · Combined (mixed unilateral and bilateral) trials
MD 5.09 [1.35, 8.82]
GRADE not reported
2 studies · 211 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
7-10 days · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Parkin 2012
SMD -0.86 [-1.86, 0.14]
GRADE not reported
3 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Overall complications
Surgical-orthodontic management · Sensitivity: leave-one-out omitting Dahlén 2026
RR 0.54 [0.09, 3.34]
GRADE not reported
2 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative discomfort
Surgical-orthodontic management
SMD -0.25 [-0.42, -0.07]
GRADE not reported
3 studies · 503 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Gingival recession, midbuccal
Surgical-orthodontic management
MD 0.04 [-0.15, 0.23]
GRADE not reported
2 studies · 105 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
1 day · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Færøvig 2025
SMD -0.56 [-0.84, -0.28]
GRADE not reported
2 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Overall complications
Surgical-orthodontic management · Sensitivity: leave-one-out omitting Björksved 2018
RR 0.71 [0.05, 9.28]
GRADE not reported
2 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
1 day · Surgical-orthodontic management · Follow-up 1 day
SMD -0.39 [-0.75, -0.04]
GRADE not reported
3 studies · 294 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Analgesic consumption (patients using analgesics)
1 day · Surgical-orthodontic management · Follow-up 1 day
RR 0.98 [0.89, 1.07]
GRADE not reported
3 studies · 294 participants
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
1 day · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Dahlén 2026
SMD -0.28 [-0.73, 0.17]
GRADE not reported
2 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Overall complications
Surgical-orthodontic management · Sensitivity: leave-one-out omitting Færøvig 2025
RR 1.51 [0.69, 3.3]
GRADE not reported
2 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
7-10 days · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Dahlén 2026
SMD -0.78 [-1.88, 0.32]
GRADE not reported
3 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
7-10 days · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Björksved 2018
SMD -0.7 [-1.86, 0.46]
GRADE not reported
3 studies
Children and adolescents with palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Postoperative pain score
1 day · Surgical-orthodontic management · Sensitivity: leave-one-out omitting Björksved 2018
SMD -0.34 [-0.94, 0.26]
GRADE not reported
2 studies
Children and adolescents with unilateral palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Surgical time (minutes)
Surgical-orthodontic management · Unilateral cases
MD 2.91 [0.49, 5.33]
GRADE not reported
5 studies · 356 participants
Children and adolescents with bilateral palatally displaced maxillary caninesClosed surgical exposure (attachment bonded, flap repositioned)Open surgical exposure (crown left exposed)Surgical time (minutes)
Surgical-orthodontic management · Bilateral cases
MD 8.27 [0.84, 15.69]
GRADE not reported
2 studies · 51 participants

Included primary studies 15

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Bjorksved 2018
Closed vs open surgical exposure of palatally displaced canines: surgery time, postoperative complications, and patients’ perceptions: a…
DOI:10.1093/ejo/cjy070
2018this review onlynot statednot extracted yet
Björksved 2018
Closed vs open surgical exposure of palatally displaced canines: surgery time, postoperative complications, and patients' perceptions: a…
PMID:30321323
2018this review onlynot statednot extracted yet
Björksved 2021
Open vs closed surgical exposure of palatally displaced canines: a comparison of clinical and patient-reported outcomes-a multicentre,…
PMID:34114630
2021this review onlynot statednot extracted yet
Dahlen 2026
Glass ionomer open exposure and closed exposure of palatally displaced canines: a randomised controlled trial comparing postoperative pain…
DOI:10.1093/ejo/cjag011
2026this review onlynot statednot extracted yet
Dahlén 2026
Glass ionomer open exposure and closed exposure of palatally displaced canines: a randomised controlled trail comparing postoperative pain…
PMID:41843643
2026this review onlynot statednot extracted yet
Faerovig 2025
Closed vs open surgical exposure of palatally displaced canines: Patients’ perceptions of recovery, operating time, and complications—A…
DOI:10.1016/j.ajodo.2024.11.014
2025this review onlynot statednot extracted yet
Færøvig 2025
Closed vs open surgical exposure of palatally displaced canines: Patients' perceptions of recovery, operating time, and complications-A…
PMID:40157786
2025this review onlynot statednot extracted yet
Gharaibeh 2008
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Gharaibeh 2008
Active-site-directed reagents of glycolytic enzymes.
PMID:200825
1977this review onlynot statednot extracted yet
Parkin 2012
No Difference in Surgical Outcomes Between Open and Closed Exposure of Palatally Displaced Maxillary Canines
DOI:10.1016/j.joms.2012.02.028
2012this review onlynot statednot extracted yet
Parkin 2012
No difference in surgical outcomes between open and closed exposure of palatally displaced maxillary canines.
PMID:22677328
2012this review onlynot statednot extracted yet
Parkin 2013
Periodontal health of palatally displaced canines treated with open or closed surgical technique: a multicenter, randomized controlled…
PMID:23910198
2013this review onlynot statednot extracted yet
Parkin 2015
Esthetic judgments of palatally displaced canines 3 months postdebond after surgical exposure with either a closed or an open technique.
PMID:25636550
2015this review onlynot statednot extracted yet
Smailiene 2013
Palatally impacted maxillary canines: choice of surgical-orthodontic treatment method does not influence post-treatment periodontal…
DOI:10.1093/ejo/cjs102
2013this review onlynot statednot extracted yet
Smailiene 2013
Palatally impacted maxillary canines: choice of surgical-orthodontic treatment method does not influence post-treatment periodontal…
PMID:23349422
2013this review onlynot statednot extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationChildren, adolescents or adults with unilateral or bilateral palatally displaced maxillary caninesPediatric and adolescent patients with maxillary PDC, mean age 12.9 to 17.6 years (n=450)
InterventionClosed surgical exposure with attachment bonding and flap repositioningClosed surgical exposure (n=6 studies)
ComparisonOpen surgical exposure with crown left exposedOpen surgical exposure (n=6 studies)
OutcomesPostoperative pain, discomfort, analgesic consumption, surgery time, overall complications, periodontal outcomes, eruption durationPain, discomfort, surgical time, analgesic consumption, gingival recession, eruption time, overall, major and minor complications
Study designsRCTs and prospective controlled clinical studies5 RCTs and 1 prospective controlled study (9 reports)
TimingNot specifiedFollow-up 1 week to 12 months