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Annals of Anatomy = Anatomischer... Feb 2023This review aimed to investigate the clinical outcomes of autogenous particulated dentin (APD) used for alveolar ridge preservation (ARP), evaluating volume gain,...
PURPOSE
This review aimed to investigate the clinical outcomes of autogenous particulated dentin (APD) used for alveolar ridge preservation (ARP), evaluating volume gain, histologic/histomorphometric data, and associated complications.
MATERIAL AND METHODS
The review followed PRISMA guidelines and was registered in the International Prospective Register of Systematic Reviews (PROSPERO). An automated search was made in four databases (Medline/Pubmed, Scopus, Web of Science, and Cochrane Library) supplemented by a manual search for relevant clinical articles published before March 10th, 2022. The review included human studies of at least four patients in which extraction and subsequent ARP were performed in a single surgery. Both comparative studies and studies that assessed ARP with APD exclusively were admitted. The quality of evidence was assessed with the Cochrane bias assessment tool, the Newcastle-Ottawa Quality Assessment Scale, and the Joanna Briggs Institute Critical Appraisal tool.
RESULTS
Eleven studies fulfilled the inclusion criteria and were included for descriptive analysis, with a total of 215 patients, and 337 alveoli preserved by APD, spontaneous healing (blood clot), or other bone substitutes, obtaining comparatively less vertical and horizontal resorption when APD was used.
CONCLUSIONS
After dental extraction, autogenous dentin was effective in terms of volume maintenance, showing promising results in histologic/histomorphometric analysis, and a low complication rate. Nevertheless, few comparative studies with comparable parameters have been published and so more research providing long-term data is needed to confirm these findings.
Topics: Humans; Alveolar Ridge Augmentation; Bone Transplantation; Bone Substitutes; Minerals; Alveolar Process; Dentin; Tooth Socket; Tooth Extraction
PubMed: 36396018
DOI: 10.1016/j.aanat.2022.152024 -
Clinical Oral Investigations Aug 2021The aim of this systematic review was to evaluate the efficacy of immediate implant placement (IIP) compared to implants placed after alveolar ridge preservation (ARP)... (Meta-Analysis)
Meta-Analysis Review
AIM
The aim of this systematic review was to evaluate the efficacy of immediate implant placement (IIP) compared to implants placed after alveolar ridge preservation (ARP) in terms of clinical, esthetic, and patient-reported outcomes.
METHODS
A manual and electronic search (National Library of Medicine) was performed for controlled clinical trials, with at least 12 months of follow-up. Primary outcome variable was implant survival and secondary outcomes were marginal bone level (MBL) (change), pink esthetic score (PES), mid-facial mucosal level (change), papilla index score, complications, and patient-reported outcomes.
RESULTS
A total of 10 publications were included (7 randomized clinical trials and 3 controlled clinical trials). The results from the meta-analyses showed that survival rate was significantly lower in the IIP group compared to ARP group [RR = 0.33; 95% CI (0.14; 0.78); p = 0.01]. No significant differences between the two groups were observed regarding radiographic MBL, PES scores, or mid-facial mucosal level (p > 0.05).
CONCLUSION
The results from this systematic review and meta-analysis showed that IIP had lower survival rates and similar esthetic results when compared to ARP.
CLINICAL RELEVANCE
Clinicians should weigh the benefits and disadvantages of each intervention to select the optimal timing of implant placement.
Topics: Alveolar Process; Alveolar Ridge Augmentation; Dental Implantation, Endosseous; Dental Implants; Esthetics, Dental; Humans; Tooth Extraction; Tooth Socket; Treatment Outcome
PubMed: 34100157
DOI: 10.1007/s00784-021-03986-6 -
Odontology Oct 2023Bone metabolism and repair are directly regulated by arachidonic acid metabolites. At present, we analyzed the dose-response effects of a selective cysteinyl leukotriene...
Bone metabolism and repair are directly regulated by arachidonic acid metabolites. At present, we analyzed the dose-response effects of a selective cysteinyl leukotriene receptor type-1 antagonist during bone repair after tooth extraction and on non-injured skeleton. Sixty-three 129 Sv/Ev male mice composed the groups: C-Control (saline solution); MTK2-2 mg/Kg of Montelukast (MTK) and MTK4-4 mg/Kg of MTK, daily administered by mouth throughout all experimental periods set at 7, 14, and 21 days post-operative. Dental sockets were analyzed by computed microtomography (microCT), histopathology, and immunohistochemistry. Femurs, L5 vertebra and organs were also removed for observation. Blood was collected for plasma bone and liver markers. Histopathology and microCT analysis revealed early socket repair of MTK2 and MTK4 animals, with significant increased BV/TV at days 14 and 21 compared to C. Higher plasma calcium was detected at days 7 and 21 in MTK4 in comparison to C, while phosphate was significantly increased in MTK2 in the same periods in comparison to C and MTK4. No significant differences were found regarding plasma ALP and TRAP, neither for local TRAP and Runx2 immunolabeling at the healing sockets. Organs did not present histological abnormalities. Increased AST levels have been detected in distinct groups and periods. In general, femur phenotype was improved in MTK treated animals. Collectively, MTK promoted early bone formation after tooth extraction and increased bone quality of femurs and vertebra in a time-dose-dependent manner, and should be considered as an alternative therapy when improved post-extraction socket repair or skeleton preservation is required.
Topics: Male; Mice; Animals; Tooth Socket; Wound Healing; Tooth Extraction; Acetates
PubMed: 36920595
DOI: 10.1007/s10266-023-00800-5 -
Clinical Oral Implants Research Sep 2022Alveolar ridge preservation (ARP) procedures can limit bone changes following tooth extraction. However, the role of ARP in periodontally compromised socket lacks strong... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVES
Alveolar ridge preservation (ARP) procedures can limit bone changes following tooth extraction. However, the role of ARP in periodontally compromised socket lacks strong scientific evidence. The aim of this systematic review and meta-analysis was to evaluate the outcomes of ARP following extraction of periodontally compromised teeth in comparison with extraction alone in terms of hard tissue changes, need for additional augmentation at the time of implant placement, and patient-reported outcomes.
MATERIAL AND METHODS
Electronic databases were searched to identify randomized controlled trials (RCTs) that compared ARP in periodontally compromised sockets with spontaneous socket healing. The risk of bias was assessed using the Cochrane Collaboration's risk of bias tool.
RESULTS
Five studies with 134 extraction sockets in 126 participants were included. Of these, ARP was performed in 77 sites, while the remaining sites were intentionally left to heal without any ARP treatment. The follow-up time varied between 6 and 12 months. Overall meta-analysis showed significant differences in changes in ridge height (mean difference (MD) -0.95; 95% confidence interval (CI) -1.43 to -0.47; p = .0001) and bone volume (MD -38.70; 95% CI -52.17 to -25.24; p < .0001) in favor of ARP. The use of ARP following extraction of periodontally compromised tooth was also associated with significantly less need for additional bone grafting at the time of implant placement.
CONCLUSIONS
Within the limitation of this review, ARP following extraction of periodontally compromised teeth may have short-term positive effects on alveolar ridge height and bone volume and minimize the need for additional augmentation procedures. However, the evidence is of very low to low certainty.
Topics: Alveolar Bone Loss; Alveolar Process; Alveolar Ridge Augmentation; Bone Transplantation; Humans; Tooth Extraction; Tooth Socket
PubMed: 35818637
DOI: 10.1111/clr.13975 -
Oral Diseases May 2022Primary cilium is a key organelle of regulating bone development and maintenance. The aim of this study is to investigate whether ciliary intraflagellar transporter...
OBJECTIVES
Primary cilium is a key organelle of regulating bone development and maintenance. The aim of this study is to investigate whether ciliary intraflagellar transporter protein 140 (IFT140) plays a positive role in extraction socket healing by promoting bone formation.
MATERIALS AND METHODS
A left maxillary first molar extraction model was established using 6-week-old Ift140 (Ctrl group) and Ift140 , Osx-cre (cKO group) mice. The maxillary bone samples from 1, 2, and 3 weeks were postoperatively evaluated by micro-CT, molecular biology, and histomorphometry analysis. Alveolar bone marrow stromal cells (aBMSCs) from 4-week-old mice were cultured in vitro and tested for proliferation and osteogenic ability.
RESULTS
Ciliated cells were predominantly observed in the early socket healing stage with highly expressed ciliary protein IFT140. Compared with the Ctrl group, the healing of extraction sockets in the cKO group was significantly delayed. The proliferation and osteogenic differentiation ability of aBMSCs were reduced in the cKO group.
CONCLUSION
IFT140 has a facilitating role in the early osteogenesis of extraction socket healing and is involved in regulating the proliferation and osteogenic differentiation of aBMSCs.
Topics: Animals; Carrier Proteins; Mesenchymal Stem Cells; Mice; Osteogenesis; Periodontal Ligament; Tooth Extraction; Tooth Socket
PubMed: 33682229
DOI: 10.1111/odi.13833 -
International Journal of Environmental... Feb 2022Immediate implant placement protocols after dental extraction have enabled a reduction in surgical phases. This procedure has increased patient satisfaction and similar...
Immediate implant placement protocols after dental extraction have enabled a reduction in surgical phases. This procedure has increased patient satisfaction and similar survival rates to late implant placement procedures. However, placing an implant immediately after dental extraction does not counteract the physiological remodeling of alveolar bone. For this reason, additional surgical techniques have been developed, such as the placement of a connective tissue graft (CTG) or the socket shield technique (SST). Dimensional changes in the peri-implant tissues were observed after placement of immediate implants following the extraction and CTG and/or SST. A total of 26 surgical interventions were carried out in which dimensional change variables of peri-implant tissues were analyzed. The preoperative state and immediate postoperative situation were compared with the situation after one year. Measurements were taken at 3, 5, and 7 mm from the gingival margin and analyzed in this CBCT radiological study (Planmeca Promax 3D). The implant platform was used as a reference point for the measurement of changes in alveolar crest height. One year after performing either of the two techniques (CTG and/or SST), a significant increase in the gingiva thickness and vestibular cortex occurred at 5 mm (0.65 ± 1.16 mm) and 7 mm (0.95 ± 1.45 mm) from the gingival margin. Additionally, an increase in thickness of palatal bone was registered at 3 mm (0.48 ± 0.90 mm). The graft placement group showed an increase in thickness of peri-implant tissue in the vestibular area after one year, although CTG and SST groups were clinically similar. The implementation of SST revealed promising results regarding the buccal thickness of hard and soft tissues after one year. A significant increase in vestibular cortical bone thickness, as well as the overall mucosa thickness and buccal bone at 3 mm from the gingival margin, was observed. A significant reduction in the distance from the bone crest to the platform was detected in both techniques. Both techniques (CTG and SST) are appropriate to provide sufficient volume to peri-implant tissues in the vestibular area of anterior maxillary implants. Some limitations were detected, such as the lack of an aesthetic analysis or small sample size, so results should be interpreted with caution. Future studies are necessary to further evaluate the long-term predictability of these techniques.
Topics: Alveolar Process; Humans; Immediate Dental Implant Loading; Maxilla; Tooth Extraction; Tooth Socket; Treatment Outcome
PubMed: 35270486
DOI: 10.3390/ijerph19052795 -
The Journal of Contemporary Dental... Feb 2022The present systematic review and meta-analysis (SR/MA) aimed to test the null hypothesis that there is no difference between socket-shield technique (SST) and... (Meta-Analysis)
Meta-Analysis
AIM
The present systematic review and meta-analysis (SR/MA) aimed to test the null hypothesis that there is no difference between socket-shield technique (SST) and conventional immediate implant placement (CIIP) as an esthetic rehabilitation option for permanent human anterior teeth, against the alternative one of a difference.
BACKGROUND
Socket-shield technique is considered as a highly promising procedure that has the potential to prevent resorption of anterior alveolar ridges, maintains white and pink esthetics, and provides a solution for esthetically critical cases. Controlled randomized clinical trials (RCT) and nonrandomized ones had been identified by searching the following databases: Google Scholar, Scopus, and PubMed. Literature search was determined from January 2010 up to June 2020. Hand searches were also accomplished for relevant abstracts, books, and reference lists. The eligibility criteria included prospective observational controlled RCTs and non-RCTs.
POPULATIONS
patients with endodontically treated/nonrestorable permanent mature anterior teeth indicated for extraction.
INTERVENTIONS
the sockets were subjected to immediate implant placement using SST.
CONTROLS
implants placed with SST compared with those of CIIP.
OUTCOME
the pink esthetic score measured for esthetic rehabilitation. To assess article quality, the Cochrane risk-of-bias tool was used by two independent authors. The data across quantitative studies were analyzed using comprehensive MA software.
REVIEW RESULTS
The initial search found out 172 references through the search strategy and three additional ones were recognized through hand searching. After being filtered, 101 references were screened and recorded. After the inclusion and exclusion criteria were applied, only seven unduplicated prospective controlled RCTs and non-RCTs were involved in the quantitative MA. At the 6-month evaluation period, the total standard difference in mean was 1.07 and test value measuring heterogeneity was 77.182, whereas at the 12-month period, the total standard difference in mean was 1.43 and test value measuring heterogeneity was 64.914.
CONCLUSION
SST had a positive effect on the esthetic rehabilitation for anterior teeth better than CIIP. However, this conclusion was dependent on a very few well-conducted prospective RCT and non-RCT. Further RCTs with longer observational time, proper methodology, and of larger sample size are still required to adequately answer the question of the present SR.
CLINICAL SIGNIFICANCE
There is limited knowledge about the appropriateness of SST in the field of implant dentistry, specifically for esthetic consideration. This SR/MA confirmed the positive effect of the SST over CIIP for esthetic rehabilitation for anterior teeth.
SYSTEMATIC REVIEW REGISTRATION
PROSPERO, identifier CRD42020194086.
Topics: Dental Implantation, Endosseous; Dental Implants, Single-Tooth; Esthetics, Dental; Humans; Immediate Dental Implant Loading; Observational Studies as Topic; Tooth Extraction; Tooth Socket; Treatment Outcome
PubMed: 35748456
DOI: No ID Found -
The International Journal of... 2021This study aimed to characterize extraction sockets based on indirect digital root analysis. The outcomes of interest were estimated socket volume and dimensions of the...
This study aimed to characterize extraction sockets based on indirect digital root analysis. The outcomes of interest were estimated socket volume and dimensions of the socket orifice. A total of 420 extracted teeth, constituting 15 complete sets of permanent teeth (except third molars), were selected. Teeth were scanned to obtain STL files of the root complex for digital analysis. After digitally sectioning each root 2.0 mm apical to the cementoenamel junction (CEJ), root volume was measured in mm and converted to cc. Subsequently, a horizontal section plane was drawn at the most zenithal level of the buccal CEJ, and the surface area (in mm2) and buccolingual and mesiodistal linear measurements of the socket orifice (in mm) were computed. Maxillary first molars exhibited the largest mean root volume (0.451 ± 0.096 cc) and mandibular central incisors the smallest (0.106 ± 0.02 cc). Surface area analysis demonstrated that mandibular first molars presented the largest socket orifice area (78.56 ± 10.44 mm), with mandibular central incisors presenting the smallest area (17.45 ± 1.82 mm). Maxillary first molars showed the largest mean socket orifice buccolingual dimension (11.08 ± 0.60 mm), and mandibular first molars showed the largest mean mesiodistal dimension (9.73 ± 0.84 mm). Mandibular central incisors exhibited the smallest mean buccolingual (5.87 ± 0.26 mm) and mesiodistal (3.52 ± 0.24 mm) linear dimensions. Findings from this study can be used by clinicians to efficiently plan extraction-site management procedures (such as alveolar ridge preservation via socket grafting and sealing) and implant provisionalization therapy, and by the industry to design products that facilitate site-specific execution of these interventions.
Topics: Alveolar Process; Dentition, Permanent; Humans; Molar; Molar, Third; Tooth Extraction; Tooth Socket
PubMed: 33528463
DOI: 10.11607/prd.4969 -
Clinical Implant Dentistry and Related... Feb 2022There is no clear evidence that immediate implant placement can be applied to cases with dehiscence in the facial alveolar bone prior to extraction.
BACKGROUND
There is no clear evidence that immediate implant placement can be applied to cases with dehiscence in the facial alveolar bone prior to extraction.
PURPOSE
To evaluate the results of immediate implant placement in the anterior maxilla with facial alveolar bone dehiscence.
MATERIALS AND METHODS
We super positioned pre- and post-operative cone-beam computed tomography (CBCT) three-dimensional reconstruction images. A CBCT was taken before tooth extraction (T0), when the definitive restoration was placed (T1), and 1 year after placing the definitive restoration (T2). The depth and width of the dehiscence at T0, and the height and width of the facial hard and soft tissues are measured at the implant site at T1 and T2. We calculated the change in the amount of hard and soft tissues from T1 to T2 and determined the correlation between preoperative facial alveolar bone morphology and postoperative gingival recession.
RESULTS
13 women and 7 men were recruited. A total of 20 implants were evaluated. The implant survival rate was 100%. The mean facial alveolar bone dehiscence width was 3.9 ± 1.6 mm, and the mean depth from platform level was 2.9 ± 1.7 mm. The mean implant body exposure on the buccal was 4.8 ± 1.7 mm, and the mean socket width gap was 2.1 ± 0.8 mm. At T1, the mean facial hard tissue width was 2.1 ± 0.7 mm, and the mean height was 2.0 ± 0.7 mm. The mean change in vertical gingival recession from T1 to T2 was 0.5 ± 0.5 mm. We found a positive correlation between facial alveolar bone dehiscence width and gingival recession (r = 0.46, p-value = 0.04) and between dehiscence depth and gingival recession (r = 0.48, p-value = 0.03).
CONCLUSIONS
The results of our CBCT superposition method indicated that immediate implant placement can be considered in patients with facial alveolar bone dehiscence. However, there may be a higher risk of gingival recession with wide or deep dehiscence.
Topics: Cone-Beam Computed Tomography; Dental Implants; Dental Implants, Single-Tooth; Female; Gingival Recession; Humans; Male; Maxilla; Tooth Extraction; Tooth Socket; Treatment Outcome
PubMed: 34931737
DOI: 10.1111/cid.13059 -
Tissue Engineering and Regenerative... Jun 2022Platelet rich fibrin (PRF) has shown great potential in osteogenesis; however, some studies still question utilizing it as a grafting material. Thus, the aim of this... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Platelet rich fibrin (PRF) has shown great potential in osteogenesis; however, some studies still question utilizing it as a grafting material. Thus, the aim of this review is to evaluate the effect of PRF when used in socket and ridge preservation procedures.
METHODS
Electronic searches through MEDLINE, EMBASE, and Cochrane, Science Citation Index Expanded databases and manual searches of unpublished data, academic theses, and journals were conducted up until July 2021. The outcomes were to assess the ability of PRF as a graft material to preserve bone width, height, and density after tooth extraction.
RESULTS
Twelve studies were included in the review, using PRF showed significant results in all three outcomes when compared to no grafting at all, however when compared to other commonly used grafting materials it showed a lesser effect. On the other hand, most studies included reported mixing PRF with a graft material showed the best result. The meta-analysis also revealed the significant results in using PRF on the three outcomes.
CONCLUSION
The meta-analysis of the studies included proved the beneficial effect of PRF in socket preservation surgeries alone or in combination with other graft materials, but further individual multi-centre randomized controlled studies with appropriate sample size are still needed to further confirm our findings.
Topics: Osteogenesis; Platelet-Rich Fibrin; Tooth Extraction; Tooth Socket
PubMed: 35334092
DOI: 10.1007/s13770-021-00428-y