International Journal of Dentistry / 2018 / Article / Tab 1

Review Article

Ridge Preservation Procedures after Tooth Extractions: A Systematic Review

Table 1

The studies included in the final review.

StudyPang et al. [19]Temmerman et al. [20]

MethodsRandomized controlled clinical trialRandomized controlled clinical split mouth trial

Participants60 patients22 patients

Surgical considerationsExtraction with two vertical releasing incisions (mesial/distal) plus collagen membrane with DBB collagen spongeExtraction plus 2-3 PRF

InterventionTest group: deproteinized collagen bovine bone covered with collagen membraneTest group: leukocyte-platelet-rich fibrin
Control group: spontaneous healingControl group: spontaneous healing
Level A buccal defects: between 3 and 5 mm
Level B buccal defects: 5 mm or more

Measurement methodCBCT/ISQCBCT

Follow-up6 months postoperatively3 months postoperatively

OutcomeVertical resorption:Vertical resorption (lingual):
(i) Level A (control group): −2.92 ± 0.31 mm−0.7 ± 0.8 mm (control group)
(ii) Level A (test group): −1.53 ± 0.26 mm−0.3 ± 1.2 mm (L-PRF group)
(iii) Level B (control group): −3.17 ± 0.37 mmVertical resorption (buccal):
(iv) Level B (test group): −2.48 ± 0.22 mm−1.6 ± 1.2 mm (control group)
−0.1 ± 1.6 mm (L-PRF group)
Horizontal resorption:Horizontal resorption (lingual):
(i) Level A (control group): −3.26 ± 0.44 mm(Control group)
(ii) Level A (test group): −2.87 ± 0.25 mmHW-1 mm: −2.0 ± 2.6 mm
(iii) Level B (control group): −3.82 ± 0.33 mmHW-3 mm: −0.2 ± 0.3 mm
(iv) Level B (test group): −3.05 ± 0.18 mmHW-5 mm: −0.1 ± 0.3 mm
(Test group)
HW-1 mm: −0.3 ± 1.9 mm
HW-3 mm: −0.1 ± 0.3 mm
HW-5 mm: −0.0 ± 0.1 mm
Mean ISQ test group:Horizontal resorption (buccal):
Immediately after implant placement: 62.33–63.40(Control group)
1 month postoperatively: 60HW-1 mm: −3.3 ± 2.6 mm
3 months postoperatively: 72HW-3 mm: −1.0 ± 1.1 mm
HW-5 mm: −0.5 ± 0.7 mm
Mean ISQ control group:(Test group)
1 month postoperatively:–HW-1 mm: −1.2 ± 2.6 mm
3 months postoperatively: 70HW-3 mm: −0.8 ± 0.9 mm
HW-5 mm: −0.5 ± 0.6 mm

Secondary outcomeLevel B (control group): implants could not be placed in 3 patientsL-PRF group: 94.7% socket fill
Control group: 63.3% socket fill