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  1. Article: Bisphosphonates do not affect healing of a critical-size defect in estrogen-deficient mice.

    Strunz, Franziska / Gentil-Perret, Saskia / Siegrist, Mark / Bohner, Marc / Saulacic, Nikola / Hofstetter, Willy

    Bone reports

    2024  Volume 20, Page(s) 101739

    Abstract: Bisphosphonates (BP) are anti-resorptive drugs that are widely used to prevent bone loss in osteoporosis. Since inhibition of bone resorption will cause a decrease in bone formation through a process called coupling, it is hypothesized that extended ... ...

    Abstract Bisphosphonates (BP) are anti-resorptive drugs that are widely used to prevent bone loss in osteoporosis. Since inhibition of bone resorption will cause a decrease in bone formation through a process called coupling, it is hypothesized that extended treatment protocols may impair bone healing. In this study, β-tri‑calcium-phosphate (βTCP) ceramics were inserted into critical-size long bone defects in estrogen-deficient mice under BP therapy. The study assessed the benefits of coating the ceramics with Bone Morphogenetic Protein-2 (BMP2) and an engineered BMP2 analogue (L51P) that inactivates BMP antagonists on the healing process, implant resorption, and bone formation. Female NMRI mice (11-12 weeks of age) were ovariectomized (
    Language English
    Publishing date 2024-01-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2821774-3
    ISSN 2352-1872
    ISSN 2352-1872
    DOI 10.1016/j.bonr.2024.101739
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Prevalence of Peri-Implantitis in Implants with Turned and Rough Surfaces: a Systematic Review.

    Saulacic, Nikola / Schaller, Benoit

    Journal of oral & maxillofacial research

    2019  Volume 10, Issue 1, Page(s) e1

    Abstract: Objectives: Moderately-rough implant surface may improve implant therapy in terms of bone integration, but the increased surface roughness might affect the initiation and development of peri-implantitis. The aim of the present review was to compare the ... ...

    Abstract Objectives: Moderately-rough implant surface may improve implant therapy in terms of bone integration, but the increased surface roughness might affect the initiation and development of peri-implantitis. The aim of the present review was to compare the prevalence of peri-implantitis in implants with rough and turned (machined) implant surfaces.
    Material and methods: An electronic literature search was conducted of the MEDLINE and EMBASE databases for articles published between 1 January 1990 and 1 March 2018. Clinical human studies in the English language that had reported on prevalence of peri-implantitis in tuned and rough surface implants were searched. The initial search resulted in 690 articles.
    Results: Eight articles with 2992 implants were included in the systematic review. The incidence of peri-implantitis for two implant surfaces varied between studies. A meta-analysis was not feasible due to the heterogeneity among studies. Implant with rough surfaces were more favourable for plaque accumulation during short-term follow-up. On a long-term, turned implants surfaces were associated with more plaque and higher peri-implant bone loss. Peri-implant clinical parameters and survival rate for two implant surfaces was similar.
    Conclusions: Within the limitations of the present study, rough implant surface does not seem to increase the incidence of peri-implantitis in comparison to turned implants surface.
    Language English
    Publishing date 2019-03-31
    Publishing country Lithuania
    Document type Journal Article ; Review
    ZDB-ID 2580511-3
    ISSN 2029-283X
    ISSN 2029-283X
    DOI 10.5037/jomr.2019.10101
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Implant Placement Using the Bone Ring Technique With and Without Membrane Placement: A Preclinical 12-Month Study in Dogs.

    Haga-Tsujimura, Maiko / Nakahara, Ken / Igarashi, Kensuke / Kobayashi, Eizaburo / Katagiri, Hiroki / Saulacic, Nikola

    The Journal of oral implantology

    2023  Volume 49, Issue 2, Page(s) 187–196

    Abstract: The bone ring technique is applied for vertical augmentation, in which the dental implant and autogenous block bone graft are simultaneously inserted. We investigated the healing of bone around implants placed simultaneously using the bone ring technique ...

    Abstract The bone ring technique is applied for vertical augmentation, in which the dental implant and autogenous block bone graft are simultaneously inserted. We investigated the healing of bone around implants placed simultaneously using the bone ring technique with and without membrane placement after a 12-month healing period. Vertical bone defects were created on both sides of the mandible of Beagle dogs. Implants were inserted into the defects through bone rings and fixed with membrane screws as healing caps. The augmented sites on one side of the mandible were covered with a collagen membrane. Samples were harvested 12 months after implantation and assessed histologically and by microcomputed tomography analysis. All implants remained throughout the healing period; however, except for 1 implant, they showed lost caps and/or exposure to the oral cavity. The implants had contact with newly formed bone despite frequent bone resorption. The surrounding bone appeared mature. The medians of bone volume and percentages of total bone area and bone-to-implant contact within the bone ring were slightly higher in the group with membrane placement than in that without membrane placement. Nevertheless, none of the evaluated parameters were significantly affected by the membrane placement. In the present model, soft tissue complication was frequent, and the membrane application did not reveal the effect at 12 months after implant placement using the bone ring technique. Sustained osseointegration and maturation of surrounding bone were observed in both groups after a 12-month healing period.
    MeSH term(s) Dogs ; Animals ; Dental Implantation, Endosseous/methods ; Dental Implants ; X-Ray Microtomography ; Osseointegration ; Mandible/transplantation ; Bone Transplantation/methods
    Chemical Substances Dental Implants
    Language English
    Publishing date 2023-02-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 448462-9
    ISSN 1548-1336 ; 0160-6972
    ISSN (online) 1548-1336
    ISSN 0160-6972
    DOI 10.1563/aaid-joi-D-21-00220
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Retention of teeth in the fracture gaps of the mandible: a retrospective analysis.

    Walker, Linus Josef / Koba, Sabine / Demiroglu, Aktug / Saulacic, Nikola / Burkhard, John-Patrik

    Clinical oral investigations

    2023  Volume 27, Issue 10, Page(s) 6055–6061

    Abstract: Objectives: Since the introduction of miniplate osteosynthesis and the use of prophylactic antibiotics, the complication rate related to the teeth in the fracture gap has significantly decreased. Currently, there are still no established guidelines for ... ...

    Abstract Objectives: Since the introduction of miniplate osteosynthesis and the use of prophylactic antibiotics, the complication rate related to the teeth in the fracture gap has significantly decreased. Currently, there are still no established guidelines for the management of such teeth in mandibular fracture lines. However, the long-term viability of these teeth within the fracture gap remains uncertain. Therefore, this study aimed to assess the survival rate of teeth located within the mandibular fracture line and evaluate related follow-up treatments over a minimum period of one year.
    Materials and methods: This retrospective study examined 184 patients who underwent surgical treatment for mandibular fractures between January 2018 and December 2021. A total of 189 teeth located in the fracture line were analyzed. Clinical and radiological parameters were collected, including patient age and gender, fracture etiology and location, intraoperative tooth treatment, as well as complications related to both the fracture and the affected teeth in long term.
    Results: Most of the examined teeth remained uneventful, with postoperative tooth-related complications seen in 14 (7.4%) teeth. The most common complications were symptomatic apical periodontitis (n = 9, 4.8%) and increased tooth mobility (n = 3, 1.5%). A correlation was found between complications and trauma-related tooth luxation (p = 0.002, OR = 15.2), as well as prior teeth connected to retainers or orthodontic appliances (p = 0.001, OR = 10.32).
    Conclusion: Tooth-related complications are rare when intact teeth are retained within the fracture gap. Therefore, unless there is a definitive intraoperative indication for extraction, it is recommended to preserve the teeth in the fracture line.
    Clinical relevance: Intact teeth in the fracture line of the mandible should not be primarily extracted.
    MeSH term(s) Humans ; Retrospective Studies ; Mandibular Fractures/surgery ; Tooth Extraction ; Tooth ; Mandible ; Postoperative Complications
    Language English
    Publishing date 2023-08-23
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1364490-7
    ISSN 1436-3771 ; 1432-6981
    ISSN (online) 1436-3771
    ISSN 1432-6981
    DOI 10.1007/s00784-023-05218-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Addition of Synthetic Biomaterials to Deproteinized Bovine Bone Mineral (DBBM) for Bone Augmentation-A Preclinical In Vivo Study.

    Fujioka-Kobayashi, Masako / Katagiri, Hiroki / Lang, Niklaus P / Imber, Jean-Claude / Schaller, Benoit / Saulacic, Nikola

    International journal of molecular sciences

    2022  Volume 23, Issue 18

    Abstract: 1) Aim: To investigate the effect of synthetic bone substitutes, α-tricalcium phosphate (α-TCP) or bi-layered biphasic calcium-phosphate (BBCP) combined with deproteinized bovine bone mineral (DBBM), on bone formation. (2) Methods: Thirty critical size ... ...

    Abstract (1) Aim: To investigate the effect of synthetic bone substitutes, α-tricalcium phosphate (α-TCP) or bi-layered biphasic calcium-phosphate (BBCP) combined with deproteinized bovine bone mineral (DBBM), on bone formation. (2) Methods: Thirty critical size defects were randomly treated with the following five different treatment modalities: (1) negative control (NC, empty), (2) DBBM, (3) α-TCP + DBBM (1:1), (4) BBCP 3%HA/97%α-TCP + DBBM (1:1), and (5) BBCP 6%HA/94%α-TCP + DBBM (1:1). The samples, at four weeks post-surgery, were investigated by micro-CT and histological analysis. (3) Results: A similar level of new bone formation was demonstrated in the DBBM with α-TCP bone substitute groups when compared to the negative control by histomorphometry. DBBM alone showed significantly lower new bone area than the negative control (
    MeSH term(s) Animals ; Cattle ; Biocompatible Materials/pharmacology ; Biological Products ; Bone Regeneration ; Bone Substitutes/pharmacology ; Bone Substitutes/therapeutic use ; Calcium/pharmacology ; Calcium Phosphates/pharmacology ; Hydroxyapatites ; Minerals/pharmacology
    Chemical Substances alpha-tricalcium phosphate ; Biocompatible Materials ; Biological Products ; bone meal (TRS31EO6ZN) ; Bone Substitutes ; Calcium (SY7Q814VUP) ; Calcium Phosphates ; hydroxyapatite-beta tricalcium phosphate ; Hydroxyapatites ; Minerals
    Language English
    Publishing date 2022-09-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms231810516
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Sequential osseointegration of a novel implant system based on 3D printing in comparison with conventional titanium implants.

    Lang, Niklaus P / Imber, Jean-Claude / Lang, Kiri N / Schmid, Bruno / Muñoz, Fernando / Bosshardt, Dieter D / Saulacic, Nikola

    Clinical oral implants research

    2023  Volume 34, Issue 6, Page(s) 627–638

    Abstract: Objectives: To evaluate the sequential osseointegration of a novel titanium implant system based on a 3D printing technology in comparison with conventional titanium implants.: Material and methods: Two novel titanium implants based on 3D printing ... ...

    Abstract Objectives: To evaluate the sequential osseointegration of a novel titanium implant system based on a 3D printing technology in comparison with conventional titanium implants.
    Material and methods: Two novel titanium implants based on 3D printing were tested in the mandible of eight Beagle dogs. As a control, two different commercially available titanium implants were used. The implants were staged to accommodate healing periods of 2 and 6 weeks. The primary outcome variable was bone-to-implant contact (BIC) in non-decalcified tissue sections and micro-CT analysis.
    Results: Histomorphometrically, the proportions of tissues adjacent to the implant surfaces were similar for all implants, whereas the BIC percentage of new mineralized bone was greater for the control implants after both 2 and 6 weeks (p < .05). Micro-CT analysis revealed increasing osseous volume and BIC from 2 to 6 weeks. In contrast to the histomorphometry, the BIC evaluation with the micro-CT data revealed a significantly higher BIC for the two test implants compared with controls (p < .001). The analysis of the total implant surface area disclosed a value that was approximately double as high for the test compared to the control implants.
    Conclusions: The novel titanium implant system based on 3D printing yielded values for osseointegration that were adequate and satisfactory. The higher percentage of new mineralized bone in the control implants is explained by the fact of a completely different three-dimensional surface area.
    MeSH term(s) Dogs ; Animals ; Osseointegration ; Dental Implants ; Titanium ; Mandible/surgery ; Printing, Three-Dimensional ; Surface Properties
    Chemical Substances Dental Implants ; Titanium (D1JT611TNE)
    Language English
    Publishing date 2023-04-21
    Publishing country Denmark
    Document type Journal Article
    ZDB-ID 1067626-0
    ISSN 1600-0501 ; 0905-7161
    ISSN (online) 1600-0501
    ISSN 0905-7161
    DOI 10.1111/clr.14072
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Systematic Review and Quality Evaluation Using ARRIVE 2.0 Guidelines on Animal Models Used for Periosteal Distraction Osteogenesis

    García-González, Mario / Muñoz, Fernando / González-Cantalapiedra, Antonio / López-Peña, Mónica / Saulacic, Nikola

    Animals. 2021 Apr. 24, v. 11, no. 5

    2021  

    Abstract: The objective of this systematic review was to synthesize all the preclinical studies carried out in periosteal distraction osteogenesis (PDO) in order to evaluate the quality using the ARRIVE guidelines. The animal models used, and the influence of the ... ...

    Abstract The objective of this systematic review was to synthesize all the preclinical studies carried out in periosteal distraction osteogenesis (PDO) in order to evaluate the quality using the ARRIVE guidelines. The animal models used, and the influence of the complications, were analysed in order to establish the most appropriate models for this technique. The PRISMA statements have been followed. Bibliographic sources have been consulted manually by two reviewers. Risk of bias was evaluated using the SYRCLE tool for animal studies, and the quality of the studies with the ARRIVE 2.0 guidelines. The selection criteria established by expert researchers were applied to decide which studies should be included in the review, that resulted in twenty-four studies. Only one achieved the maximum score according to the ARRIVE 2.0 guidelines. The rabbit as an animal model has presented good results in PDO, both for calvaria and jaw. Rats have shown good results for PDO in calvaria. The minipig should not be recommended as an animal model in PDO. Despite the increase in the quality of the studies since the implementation of the ARRIVE 2.0 guidelines, it would be necessary to improve the quality of the studies to facilitate the transparency, comparison, and reproducibility of future works.
    Keywords animal models ; bone formation ; miniature swine ; rabbits ; risk ; skull ; systematic review
    Language English
    Dates of publication 2021-0424
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-AP-2-clean
    ISSN 2076-2615
    DOI 10.3390/ani11051233
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Systematic Review and Quality Evaluation Using ARRIVE 2.0 Guidelines on Animal Models Used for Periosteal Distraction Osteogenesis.

    García-González, Mario / Muñoz, Fernando / González-Cantalapiedra, Antonio / López-Peña, Mónica / Saulacic, Nikola

    Animals : an open access journal from MDPI

    2021  Volume 11, Issue 5

    Abstract: The objective of this systematic review was to synthesize all the preclinical studies carried out in periosteal distraction osteogenesis (PDO) in order to evaluate the quality using the ARRIVE guidelines. The animal models used, and the influence of the ... ...

    Abstract The objective of this systematic review was to synthesize all the preclinical studies carried out in periosteal distraction osteogenesis (PDO) in order to evaluate the quality using the ARRIVE guidelines. The animal models used, and the influence of the complications, were analysed in order to establish the most appropriate models for this technique. The PRISMA statements have been followed. Bibliographic sources have been consulted manually by two reviewers. Risk of bias was evaluated using the SYRCLE tool for animal studies, and the quality of the studies with the ARRIVE 2.0 guidelines. The selection criteria established by expert researchers were applied to decide which studies should be included in the review, that resulted in twenty-four studies. Only one achieved the maximum score according to the ARRIVE 2.0 guidelines. The rabbit as an animal model has presented good results in PDO, both for calvaria and jaw. Rats have shown good results for PDO in calvaria. The minipig should not be recommended as an animal model in PDO. Despite the increase in the quality of the studies since the implementation of the ARRIVE 2.0 guidelines, it would be necessary to improve the quality of the studies to facilitate the transparency, comparison, and reproducibility of future works.
    Language English
    Publishing date 2021-04-24
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani11051233
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: The effect of synthetic bone graft substitutes on bone formation in rabbit calvarial defects.

    Saulacic, Nikola / Fujioka-Kobayashi, Masako / Kimura, Yasushi / Bracher, Ava Insa / Zihlmann, Claudio / Lang, Niklaus P

    Journal of materials science. Materials in medicine

    2021  Volume 32, Issue 1, Page(s) 14

    Abstract: The aim of this study was to evaluate the influence of the intensity of the biomimetic hydroxyapatite (HA) coating of α-tricalcium phosphate (α-TCP) on biomaterial degradation and bone formation. Twenty-four female NZW rabbits of approximately 12 weeks ... ...

    Abstract The aim of this study was to evaluate the influence of the intensity of the biomimetic hydroxyapatite (HA) coating of α-tricalcium phosphate (α-TCP) on biomaterial degradation and bone formation. Twenty-four female NZW rabbits of approximately 12 weeks of age were used. Critical size defects were randomly treated with 3%:97% HA:α-TCP (BBCP1), 12%:88% HA:α-TCP (BBCP2), and 23%:77% HA:α-TCP (BBCP3), respectively or sham. All defects were covered with a resorbable collagen membrane. Animals were euthanized after 3 and 12 weeks of healing and samples were investigated by micro-CT and histologic analysis. Ingrowth of newly formed woven bone from the original bone at 3-week healing period was observed in all samples. At the 12-week healing period, the new bone in the peripheral area was mainly lamellar and in the central region composed of both woven and lamellar bone. New bony tissue was found on the surface of all three types of granules and at the interior of the BBCP1 granules. Samples with 3% HA showed significantly less residual biomaterial in comparison to the other two groups. Furthermore, BBCP1 significantly promoted new bone area as compared to other three groups and more bone volume as compared to the control. Within its limitations, this study indicated the highest degradation rate in case of BBCP1 concomitant with the highest rate of bone formation. Hence, formation of new bone can be affected by the level of biomimetic HA coating of α-TCP.
    MeSH term(s) Animals ; Bone Regeneration/drug effects ; Bone Regeneration/physiology ; Bone Substitutes/chemical synthesis ; Bone Substitutes/pharmacology ; Bone Transplantation/instrumentation ; Craniocerebral Trauma/diagnostic imaging ; Craniocerebral Trauma/pathology ; Craniocerebral Trauma/physiopathology ; Craniocerebral Trauma/therapy ; Female ; Materials Testing ; Osteogenesis/drug effects ; Rabbits ; Skull/drug effects ; Skull/injuries ; Skull/pathology ; Skull/ultrastructure ; Wound Healing/drug effects ; Wound Healing/physiology ; X-Ray Microtomography
    Chemical Substances Bone Substitutes
    Language English
    Publishing date 2021-01-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1031752-1
    ISSN 1573-4838 ; 0957-4530
    ISSN (online) 1573-4838
    ISSN 0957-4530
    DOI 10.1007/s10856-020-06483-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: No apparent association between dental implants and mandibular fractures resulting from external forces.

    Hino, Shunsuke / Iizuka, Tateyuki / Saulacic, Nikola / Lang, Niklaus P / Burkhard, John-Patrik M

    Clinical oral investigations

    2021  Volume 26, Issue 2, Page(s) 2065–2072

    Abstract: Objectives: Dental implants are cylindrical metallic screws inserted into the jawbone to replace missing teeth. Their location may affect the pattern of fractures that occur as a result of the traumatic forces to the mandible. The aim of this study was ... ...

    Abstract Objectives: Dental implants are cylindrical metallic screws inserted into the jawbone to replace missing teeth. Their location may affect the pattern of fractures that occur as a result of the traumatic forces to the mandible. The aim of this study was to investigate possible influences of dental implants on the patterns of mandibular fractures triggered by external forces.
    Material and methods: In this observational cross-sectional study, a total of 390 patients with mandibular fractures diagnosed between February 2016 and December 2020 were examined and the presence or absence of dental implants in the fracture gap was noted. Clinical and radiological data were analyzed in relation to the fracture line, the dental status, and the location of any implants.
    Results: A total of 16 patients (4.1%) had previously placed dental implants in the mandible. Various fracture patterns were observed. Some yielded typical fracture lines located in the anatomically weak areas along the roots of the incisors, the mental foramina, and long-rooted molars. Occasionally, fracture lines were detected in combination with condylar fractures. Dental implants were not directly involved in any fracture line, except one. In that case, the fracture line extended from the alveolar process straight along the implant body, mimicking initial disintegration of the implant, with erosion of the surrounding bone.
    Conclusions: Once dental implants have osseointegrated, mandibular fractures are rarely projected along the implant surface.
    Clinical relevance: This observational retrospective cross-sectional study failed to associate mandibular fracture lines with the presence of dental implants.
    MeSH term(s) Cross-Sectional Studies ; Dental Implants ; Humans ; Mandible ; Mandibular Fractures/diagnostic imaging ; Mandibular Fractures/surgery ; Retrospective Studies
    Chemical Substances Dental Implants
    Language English
    Publishing date 2021-09-24
    Publishing country Germany
    Document type Journal Article ; Observational Study
    ZDB-ID 1364490-7
    ISSN 1436-3771 ; 1432-6981
    ISSN (online) 1436-3771
    ISSN 1432-6981
    DOI 10.1007/s00784-021-04188-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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