Size of the lower jaw (arch length, change) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
Schwarz appliance showed no clear difference in size of the lower jaw (mandibular arch length, change) at 9 months compared with no active treatment (control); GRADE not reported.
1 finding from 1 review
Changes in vertical height of alveolar ridge (mm) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
It is very uncertain whether ARP with alloplast plus barrier membrane changes changes in vertical height of alveolar ridge (mm) compared with ARP with alloplast without membrane (very low certainty).
1 finding from 1 review
Aesthetic outcomes of future prosthodontic rehabilitation · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
The review found no eligible studies for this question.
1 finding from 1 review
Outcome not reported
0 studies
No studies found
Dental caries · Children aged 5-6 years in Ajman schools
High snack consumption was associated with higher mean DMFT.
1 finding from 1 review
Harms (toxicity and postoperative sensitivity) · People with permanent or adult posterior teeth requiring restoration (parallel-group trials involved children aged 6 to 12 years)
1 finding from 1 review
SoF (Harms, follow-up 2 weeks to 7 years): See comments; 3 studies; certainty very low (⊕⊝⊝⊝). Comments: data were reported for physical development, neurological and psychological effects, neurobehavioural and…
3 studies
Very low
Amount of crowding · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
It is very uncertain whether nitinol archwire changes amount of crowding (change) up to 37 weeks compared with titinol archwire (very low certainty).
1 finding from 1 review
Plaque/gingivitis visible in at least one oral region · School children aged 11-17 years in Sharjah
Plaque or gingivitis was visible in at least one oral region in 95% of participants.
1 finding from 1 review
Severe tooth wear prevalence · School children aged 2.6-6.8 years in Abu Dhabi
Severe tooth wear prevalence was 0.15%.
1 finding from 1 review
Time to alignment · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
Active self-ligating brackets showed no clear difference in time to alignment (days) compared with passive self-ligating brackets; GRADE not reported.
1 finding from 1 review
Marginal bone level change · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
1 finding from 1 review
Amount of crowding · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
1 finding from 1 review
Visible plaque and oral-hygiene behavior · Schoolchildren aged 4-6 years in the United Arab Emirates (Dubai)
One pre-post study of a school-based supervised tooth-brushing program found visible plaque fell from 76.8% to 36.7% with positive behavior change (narrative synthesis; not GRADE-rated).
1 finding from 1 review
Al Mashhadani evaluated a 3-month school-based daily tooth-brushing program (1,500 students aged 4-6 in 7 private and governmental schools). The presence of visible plaque decreased from 76.8% to 36.7%…
1 study · 1500 participants
GRADE not reported
Changes in bucco-lingual/palatal width of alveolar ridge (mm) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
It is very uncertain whether ARP with xenograft (bone graft) changes changes in bucco-lingual/palatal width of alveolar ridge (mm) compared with extraction alone (very low certainty).
1 finding from 1 review
Dental caries · Children aged 5-6 years in Ajman schools
Brushing at least twice daily was associated with lower mean DMFT.
1 finding from 1 review
Aesthetic outcomes of future prosthodontic rehabilitation · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
The review found no eligible studies for this question.
1 finding from 1 review
Outcome not reported
0 studies
No studies found
Changes in probing depth (PD) at teeth adjacent to the extraction site · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
ARP with alloplast showed no clear difference in changes in probing depth (PD) at teeth adjacent to the extraction site compared with ARP with xenograft; GRADE not reported.
1 finding from 1 review
Restoration failure · People with permanent or adult posterior teeth requiring restoration (parallel-group trials involved children aged 6 to 12 years)
Direct composite resin restoration may leads to higher restoration failure rate compared with amalgam restoration (low certainty).
3 findings from 1 review
Complications (e.g. discomfort, pain and swelling) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
1 finding from 1 review
1 trial (Scheyer 2016) reported moderate glazing, redness and oedema, while 2 trials (Santana 2019; Serrano Mendez 2017) reported there were no adverse events
3 studies · 87 participants
Low
Harms (discomfort, pain intensity, analgesia use) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
1 finding from 1 review
No clear difference in discomfort/pain intensity or analgesia consumption between vibrational appliance and control (Miles 2012, Miles 2016, Woodhouse 2015; 100 mm VAS). Narrative; no pooled estimate.
2 studies
GRADE not reported
Signs and symptoms of respiratory disease · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
0 studies
No studies found