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Clinical Oral Implants Research Sep 2020To assess whether alveolar ridge preservation (ARP) with 90% deproteinized bovine bone mineral in a 10% collagen matrix (DBBMC) and resorbable type I/III porcine...
PURPOSE
To assess whether alveolar ridge preservation (ARP) with 90% deproteinized bovine bone mineral in a 10% collagen matrix (DBBMC) and resorbable type I/III porcine collagen matrix (CM) maintains sufficient bone volume for early implant placement 8-10 weeks after extraction of maxillary central incisors.
MATERIALS AND METHODS
In this case series study of 10 consecutively enrolled patients, sockets of maxillary single central incisors requiring extraction and early implant placement were grafted with DBBMC/CM. Ridge dimensions were measured pre-extraction and just prior to implant placement.
RESULTS
Alveolar ridge preservation maintained sufficient bone volume for implants to be placed in all sites. Compared to pre-extraction, there was a significant reduction in the orofacial dimensions of the ridge (1.4 ± 1.07 mm; 13.2% reduction) and bone (0.7 ± 0.67 mm; 9.3%) at the coronal midfacial region. A significant reduction in apicocoronal height of the crestal bone at midfacial (1.2 ± 0.78 mm) and palatal aspects was observed. On CBCT, a statistically significant reduction in alveolar ridge area occurred (10.9 ± 13.42 mm ; 12.2% reduction). To optimize aesthetic outcomes, 9/10 sites required additional low volume grafting at the coronal region, whereas one site required more extensive grafting due to a facial bone dehiscence. At 1-year, the implant survival rate was 100% and median Pink Esthetic Score (PES) was 10 (range 9-13).
CONCLUSIONS
ARP using DBBMC/CM maintains sufficient bone volume for early implant placement 8.9 ± 0.97 weeks later, with a 100% survival rate 1 year after restoration.
Topics: Alveolar Bone Loss; Alveolar Process; Alveolar Ridge Augmentation; Animals; Cattle; Dental Implants; Esthetics, Dental; Humans; Incisor; Prospective Studies; Swine; Tooth Extraction; Tooth Socket
PubMed: 32452577
DOI: 10.1111/clr.13619 -
Oral Surgery, Oral Medicine, Oral... Mar 2023
Topics: Humans; Alveolar Process; Tooth Extraction; Alveolar Ridge Augmentation; Alveolar Bone Loss; Tooth Socket
PubMed: 36153300
DOI: 10.1016/j.oooo.2022.08.003 -
Progress in Orthodontics Aug 2023This clinical report aims to highlight the factors affecting the clinical success of alveolar ridge mini-implants used for orthodontic anchorage and provide an overview... (Review)
Review
OBJECTIVES
This clinical report aims to highlight the factors affecting the clinical success of alveolar ridge mini-implants used for orthodontic anchorage and provide an overview of the biomechanical versatility of this miniscrew and steps involving the proper technique of its placement.
METHODS
For this clinical report, charts for 295 patients who had temporary anchorage devices (TADs) were screened. Twenty patients [15 females and 5 males: mean age = 38.15 ± 15.10 years] with 50 alveolar ridge mini-screws were assessed. A descriptive summary of the main factors affecting their clinical success and the technique employed for their placement was comprehensively discussed and illustrated, in addition to the presentation of some clinical cases illustrating their potential clinical uses.
RESULTS
The survival duration (7.32 ± 9.01 months) and clinical success of the alveolar ridge mini-implants that failed (19/50) seem to be affected primarily by 2 factors: splinting; none of the splinted mini-implants failed (0/10) compared to (19/40) of the single mini-implants that failed, and the length of the used mini-implant; the average length of the mini-implants that did not fail was 9.23 mm. Additionally, it appears that these mini-implants are biomechanically robust and durable, those that did not fail had an average survival duration of 35.97 ± 19.79 months.
CONCLUSION
Ridge mini-implants offer significant biomechanical versatility in patients with partially edentulous ridges needing complex pre-prosthetic orthodontic movements. The presence of splinting and the length of the used mini-implants are factors that might affect the clinical success of the alveolar ridge mini-implants.
Topics: Adult; Female; Humans; Male; Middle Aged; Young Adult; Alveolar Process; Movement
PubMed: 37635155
DOI: 10.1186/s40510-023-00480-5 -
BMC Oral Health Jun 2020The aim of this prospective clinical study was to investigate differences between virtually planned and clinically achieved implant positions in completely... (Clinical Trial)
Clinical Trial
BACKGROUND
The aim of this prospective clinical study was to investigate differences between virtually planned and clinically achieved implant positions in completely template-guided implant placements as a function of the tooth area, the use of alveolar ridge preservation, the implant length and diameter, and the primary implant stability.
METHODS
The accuracy of 48 implants was analyzed. The implants were placed in a completely template-guided manner. The data of the planned implant positions were superimposed on the actual clinical implant positions, followed by measurements of the 3D deviations in terms of the coronal (dc) and apical distance (da), height (h), angulation (ang), and statistical analysis.
RESULTS
The mean dc was 0.7 mm (SD: 0.3), the mean da was 1.4 mm (SD: 0.6), the mean h was 0.3 mm (SD: 0.3), and the mean ang was 4.1° (SD: 2.1). The tooth area and the use of alveolar ridge preservation had no significant effect on the results in terms of the implant positions. The implant length had a significant influence on da (p = 0.02). The implant diameter had a significant influence on ang (p = 0.04), and the primary stability had a significant influence on h (p = 0.02).
CONCLUSION
Template-guided implant placement offers a high degree of accuracy independent of the tooth area, the use of measures for alveolar ridge preservation or the implant configuration. A clinical benefit is therefore present, especially from a prosthetic point of view.
TRIAL REGISTRATION
German Clinical Trial Register and the International Clinical Trials Registry Platform of the WHO: DRKS00005978 ; date of registration: 11/09/2015.
Topics: Alveolar Process; Cone-Beam Computed Tomography; Dental Implantation, Endosseous; Dental Implants; Female; Humans; Male; Prospective Studies; Tooth; Treatment Outcome
PubMed: 32600405
DOI: 10.1186/s12903-020-01155-x -
Journal of Clinical Periodontology Feb 2019To study the soft and hard tissue alterations of the alveolar ridge after socket-shield technique.
AIM
To study the soft and hard tissue alterations of the alveolar ridge after socket-shield technique.
MATERIALS AND METHODS
In four Beagle dogs, the following treatments (Tx) were randomly assigned to 32 extraction sockets: Tx1: blood clot; Tx2: Bio-Oss Collagen; Tx3: socket-shield technique and blood clot; Tx4: socket-shield technique and Bio-Oss Collagen. The width and height alterations of the buccal bone plate were calculated by CBCT scans. The dimensional alterations of the buccal aspect of the alveolar ridge at different time points were calculated by impressions using digital imaging analysis. The dogs were sacrificed for micro-CT and histologic analysis 3 months after surgery.
RESULTS
Width, height and dimensional alterations of Tx3 and Tx4 were significantly lower than those of Tx1 and Tx2. Bone morphological parameters displayed no significant differences among four groups except for the trabecular thickness of Tx1 and Tx2. The quantity and quality of hard tissue containing the residual teeth of Tx3 and Tx4 were much greater than those of Tx1 and Tx2.
CONCLUSIONS
Socket-shield technique may be beneficial in preserving the soft and hard tissue of the alveolar ridge, which is better than simple bone grafting in the extraction socket.
Topics: Alveolar Bone Loss; Alveolar Process; Alveolar Ridge Augmentation; Animals; Bone Transplantation; Collagen; Dogs; Tooth Extraction; Tooth Socket
PubMed: 30661247
DOI: 10.1111/jcpe.13073 -
Clinical Implant Dentistry and Related... Jun 2022To assess the horizontal and vertical dimensional changes of the alveolar ridge when using a collagen matrix in combination with collagen embedded xenogenic bone... (Randomized Controlled Trial)
Randomized Controlled Trial
Histological and dimensional changes of the alveolar ridge following tooth extraction when using collagen matrix and collagen-embedded xenogenic bone substitute: A randomized clinical trial.
AIM
To assess the horizontal and vertical dimensional changes of the alveolar ridge when using a collagen matrix in combination with collagen embedded xenogenic bone substitute, in comparison with natural healing after tooth extraction.
METHODS
Patients that required extraction in non-molars areas were included. Test group-15 sockets were treated with deproteinized bovine bone mineral containing 10% collagen (DBBM-C), covered by a procaine collagen membrane (CMXs). Control group-15 sockets left for spontaneous healing. We used a custom-made acrylic stent as a reference for alveolar ridge measurements. Six-month postoperative, a single implant was placed in the experimental site. A core biopsy was taken from the site, using a trephine bur. Histomorphometric analysis assessed bone area, connective tissue, bone marrow, and residual bone graft.
RESULTS
Six months later, horizontal ridge width at -3 mm showed a significant (p < 0.05) reduction in both groups albeit smaller in the test group 1.19 ± 1.55 mm, compared with the control 2.27 ± 1.52 (p = 0.087). At -5 mm sub-crestally, statistically non-significant reduction was noted in both groups, 1.61 ± 1.53 and 1.96 ± 1.52 mm for the test and control groups, respectively (p = 0.542). Vertical changes were smaller in the test group (0.14 ± 1.84 mm) compared with control (0.98 ± 1.49 mm). Keratinized tissue (KT) width was 7.3 ± 2.13 and 7.5 ± 3.49 mm in the test and control groups, respectively. Newly formed bone occupied 33.79 ± 17.37% and 51.14 ± 23.04% in the test and control groups, respectively, (p = 0.11). Connective tissue volume was 33.74 ± 13.81% and 30.12 ± 18.32% in the test and control groups, respectively (p = 0.65). Bone marrow occupied 19.57 ± 10.26% and 18.74 ± 17.15% in the test and control groups, respectively (p = 0.91). Residual graft occupied 12.9 ± 9.88% in the test group.
CONCLUSION
Alveolar ridge preservation using DBBM-C resulted in reductions of the vertical and horizontal dimensions albeit not reaching statistical significance. The larger than anticipated standard deviation and smaller inter-group differences might account for this phenomenon.
Topics: Alveolar Bone Loss; Alveolar Process; Alveolar Ridge Augmentation; Animals; Bone Substitutes; Cattle; Collagen; Humans; Tooth Extraction; Tooth Socket
PubMed: 35298865
DOI: 10.1111/cid.13085 -
Journal of Stomatology, Oral and... Sep 2023The aim of this study is to investigate the pneumatization type of the palatal process (PTP) and angular and distance measurements of neighbouring structures on cone...
PURPOSE
The aim of this study is to investigate the pneumatization type of the palatal process (PTP) and angular and distance measurements of neighbouring structures on cone beam computed tomography (CBCT) images.
MATERIALS AND METHODS
400 maxillary sinuses (MS) of 200 patients (96 female; 104 male; mean age: 43.2) were retrospectively evaluated. PTP was divided into three as types 1,2 and 3 and evaluated at distances 4, 8, 16, and 24 mm posterior to incisive foramen. The sinus and alveolar ridge height, palatonasal recess angle (PRA) and palatal junction angle (PJA) were also measured and recorded.
RESULTS
PTP I (101, 25.3%) was the most frequent type, followed by PTP II (95, 23.8%), and the least was PTP III (4, 1%). In patients with PTP I, the alveolar ridge height in the 4 mm and 8 mm group was significantly higher than in the patients with PTP II and III (p<0.05). In patients with PTP I, PRA in the 4 mm and 16 mm groups was significantly higher than in patients with PTP II and III (p<0.05). Sinus and alveolar ridge height, PRA and PJA did not differ significantly between the right and left sides in the 4 mm, 8 mm, 16 mm, and 24 mm groups (p>0.05).
CONCLUSION
Knowing the anatomy of the MS is very important for a successful surgical procedure in this area. Anatomy and pathology of the MS can be understood more clearly in CBCT.
Topics: Humans; Male; Female; Adult; Retrospective Studies; Alveolar Process; Maxillary Sinus; Cone-Beam Computed Tomography; Palate
PubMed: 36921841
DOI: 10.1016/j.jormas.2023.101432 -
Journal of Dental Research Jul 2020Tooth extraction results in alveolar bone resorption and is accompanied by postoperative swelling and pain. Maresin 1 (MaR1) is a proresolving lipid mediator produced by...
Tooth extraction results in alveolar bone resorption and is accompanied by postoperative swelling and pain. Maresin 1 (MaR1) is a proresolving lipid mediator produced by macrophages during the resolution phase of inflammation, bridging healing and tissue regeneration. The aim of this study was to examine the effects of MaR1 on tooth extraction socket wound healing in a preclinical rat model. The maxillary right first molars of Sprague-Dawley rats were extracted, and gelatin scaffolds were placed into the sockets with or without MaR1. Topical application was also given twice a week until complete socket wound closure up to 14 d. Immediate postoperative pain was assessed by 3 scores. Histology and microcomputed tomography were used to assess socket bone fill and alveolar ridge dimensional changes at selected dates. The assessments of coded specimens were performed by masked, calibrated examiners. Local application of MaR1 potently accelerated extraction socket healing. Macroscopic and histologic analysis revealed a reduced soft tissue wound opening and more rapid re-epithelialization with MaR1 delivery versus vehicle on socket healing. Under micro-computed tomography analysis, MaR1 (especially at 0.05 μg/μL) stimulated greater socket bone fill at day 10 as compared with the vehicle-treated animals, resulting in less buccal plate resorption and a wider alveolar ridge by day 21. Interestingly, an increased ratio of CD206:CD68 macrophages was identified in the sockets with MaR1 application under immunohistochemistry and immunofluorescence analysis. As compared with the vehicle therapy, local delivery of MaR1 reduced immediate postoperative surrogate pain score panels. In summary, MaR1 accelerated extraction wound healing, promoted socket bone fill, preserved alveolar ridge bone, and reduced postoperative pain in vivo with a rodent preclinical model. Local administration of MaR1 offers clinical potential to accelerate extraction socket wound healing for more predictable dental implant reconstruction.
Topics: Alveolar Bone Loss; Alveolar Process; Alveolar Ridge Augmentation; Animals; Bone Regeneration; Docosahexaenoic Acids; Male; Rats; Rats, Sprague-Dawley; Tooth Extraction; Tooth Socket; Wound Healing; X-Ray Microtomography
PubMed: 32384864
DOI: 10.1177/0022034520917903 -
Implant Dentistry Apr 2017To compare the complications and implant survival rates of localized alveolar ridge deficiencies in the horizontal dimension reconstructed by alveolar ridge splitting... (Comparative Study)
Comparative Study
PURPOSE
To compare the complications and implant survival rates of localized alveolar ridge deficiencies in the horizontal dimension reconstructed by alveolar ridge splitting (ARS) or autogenous onlay bone grafting (OBG).
MATERIALS AND METHODS
Twenty-eight ARS and 28 OBG were performed. The survival rate of the all included implants was evaluated using the clinical and radiographical evaluation criteria of Misch et al. Temporary exposure of graft, mild infection, temporary paresthesia, and bad split were defined as minor complications; permanent exposure of graft, loss of graft, and permanent paresthesia were defined as major complications. Major and minor complications of ARS and OBG groups were statistically compared.
RESULTS
When the minor and major complication rates are considered, there was not any statistically significant difference between OBG (P = 0.099) and ARS (P = 0.241) groups. The satisfactory survival rate of OBG group was 92% and was 100% in the ARS group, and the difference was not statistically significant (P = 0.116).
CONCLUSION
When reconstructing vertically sufficient but horizontally insufficient alveolar ridges, ridge splitting technique could shorten the treatment period, decrease postoperative swelling and pain, eliminate the need for a second surgical site, reduce the treatment cost, and ease the patient cooperation to the surgery.
Topics: Adult; Alveolar Process; Alveolar Ridge Augmentation; Dental Implantation, Endosseous; Dental Restoration Failure; Female; Humans; Male; Middle Aged; Retrospective Studies
PubMed: 28114264
DOI: 10.1097/ID.0000000000000541 -
Clinical Oral Implants Research Aug 2023The aims of this clinical trial were to evaluate the radiographic dimensional changes in alveolar ridge and patient-reported outcomes following tooth extraction and... (Randomized Controlled Trial)
Randomized Controlled Trial
OBJECTIVE
The aims of this clinical trial were to evaluate the radiographic dimensional changes in alveolar ridge and patient-reported outcomes following tooth extraction and alveolar ridge preservation (ARP) using either deproteinized bovine bone mineral (DBBM) with EMD or DBBM alone.
METHODS
Participants requiring at least one posterior tooth extraction and ARP were randomly allocated into two treatment groups: ARP using either DBBM with EMD or DBBM alone. Cone-beam computed tomography (CBCT) images were recorded immediately prior to extraction and at 6 months. Changes in alveolar ridge height (ARH) and alveolar ridge width (ARW) at 1, 3, and 5 mm were recorded.
RESULTS
A total of 18 participants with 25 preserved sites were evaluated. ARH and ARW changed significantly from baseline to 6 months for both treatment groups but the difference between the groups was not statistically significant over the 6-month follow-up period (ARH: DBBM/EMD 1.26 ± 1.53 mm vs. DBBM 2.26 ± 1.60 mm; ARW-1 DBBM/EMD 1.98 ± 1.80 mm vs. DBBM 2.34 ± 1.89 mm). A significant difference, favoring DBBM with EMD group, was observed in percentage of sites that had less than 1 mm loss in ARH (54.5% sites in DBBM/EMD group vs. 14.3% sites in DBBM alone group). The participants' perception of bruising, bleeding, and pain in the first two postoperative days was significantly in favor of DBBM alone group.
CONCLUSIONS
There were no significant differences in radiographic mean measurements of ARH and ARW following ARB with DBBM and EMD or DBBM alone.
Topics: Humans; Animals; Cattle; Alveolar Bone Loss; Angiotensin Receptor Antagonists; Angiotensin-Converting Enzyme Inhibitors; Alveolar Process; Tooth Extraction; Alveolar Ridge Augmentation; Tooth Socket
PubMed: 37300378
DOI: 10.1111/clr.14108