Base de datos : IBECS
Búsqueda : "1698-6946" [ISSN]
Referencias encontradas : 1984 [refinar]
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  1 / 1984 IBECS  
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Id: FGT-2692 IBECS-Express
Autor: Wang, Weihong; Zhu, Jin; Xu, Biao; Xia, Bin; Liu, Yu; Shao, Shengjie.
Título: Reconstruction of mandibular defects using vascularized fibular osteomyocutaneous flap combined with nonvascularized fibular flap
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e691-e697, sept. 2019. tab, ilus.
Idioma: en.
doi: 10.4317/medoral.23040.
Resumen: Background: The height of single-layer fibular flap is not long enough to return to the ideal height of the mandible. While the double-layer vascularized fibular osteomyocutaneous flap(VFF) is more complicated in shaping and fixation, along with a longer operation time. The aim of this study was to investigate the clinical effect of VFF combined with nonvascularized fibular flap(NVFF) in the reconstruction of mandibular defect. Material and Methods: From September 2016 to June 2018, 15 patients with benign mandibular tumors underwent reconstruction with VFF and NVFF. SimPlant Pro TM software (version 11.04) was used to simulate reconstruction of the mandible preoperatively. Results: All patients were followed up for 8-23 month, with an average of 11.7 months. 15 VFFs survived well. Among the 15 NVFFs, one was almost completely absorbed, two with partial absorption, and the remaining survived regardless of the small amount of absorption. The postoperative absorption of the whole fibula was 7.53 ± 6.362%, a favorable facial contour and speech function were attained. Conclusions: The VFF combined with NVFF to reconstruct the mandibular defect can restore the vertical height of the mandible and achieve satisfactory clinical results

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  2 / 1984 IBECS  
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Id: FGT-2691 IBECS-Express
Autor: Qu, Moyuan; Zhu, Songsong; Hu, Zhiai; Li, Yunfeng; Abotaleb, Bassam; Bi, Ruiye; Jiang, Nan.
Título: The accuracy of three-dimensional rapid prototyped surgical template guided anterior segmental osteotomy
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e684-e690, sept. 2019. ilus.
Idioma: en.
doi: 10.4317/medoral.23009.
Resumen: Background: Surgical guiding templates provided a reliable way to transfer the simulation to the actual operation. However, there was no template designed for anterior segmental osteotomy so far. The study aimed to introduce and evaluate a set of 3D rapid prototyping surgical templates used in anterior segmental osteotomy. Material and methods: From August 2015 to August 2017, 17 patients with bimaxillary protrusions were recruited and occlusal-based multi-sectional templates were applied in the surgeries. The cephalometric analysis and 3D superimposition were performed to evaluate the differences between the simulations and actual post-operative out-comes. The patients were followed-up for 12 months to evaluate the incidence rate of complications and relapse. Results: Bimaxillary protrusion was corrected in all patients with no complication. In radiographic evaluations, there was no statistically significant difference between the actual operations and the computer-aided 3D simulations (p > 0.05, the mean linear and angular differences were less than 1.32mm and 1.72º consequently, and 3D superimposition difference was less than 1.4mm). The Pearson intraclass correlation coefficient reliabilities were high (0.897), and the correlations were highly significant (P < 0.001).Conclusions: The 3D printed surgical template designed in this study can safely and accurately transfer the computer-aided 3D simulation into real practice

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  3 / 1984 IBECS  
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Id: FGT-2690 IBECS-Express
Autor: Pellicer-Chover, Hilario; Díaz-Sanchez, María; Soto-Peñaloza, David; Peñarrocha-Diago, María; Canullo, Luigi; Peñarrocha-Oltra, David.
Título: Impact of crestal and subcrestal implant placement upon changes in marginal peri-implant bone level. A systematic review
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e673-e683, sept. 2019. graf, tab.
Idioma: en.
doi: 10.4317/medoral.23006.
Resumen: Background: To systematically assess studies analyzing peri-implant bone loss in implants placed in crestal and subcrestal position. Material and Methods: Following the recommended methods for systematic reviews and meta-analyses (PRIS-MA), an electronic search was conducted in the PubMed (MEDLINE), EMBASE and LILACS databases to identify all relevant articles published up until April 2017. The search included human studies comparing marginal bone loss (MBL) between a control group and a study group with a minimum of 10 patients and a minimum follow-up of 6 months after prosthetic loading with rough neck implants. Two independent reviewers assessed the risk of bias in the selected studies based on the Newcastle-Ottawa scale for observational studies and the Cochrane Collaboration for clinical trials. Results: Of 342 potentially eligible items, 7 complied with the inclusion criteria. One article was retrieved through the manual search. Eight articles were finally included: five experimental and three observational studies. The risk of bias assessed by the Cochrane Collaboration and Newcastle-Ottawa showed a high risk of bias. The mean follow-up period was 21 months (range 6-36 months). In four studies, implants placed in a crestal position presented higher MBL than subcrestal implants - the differences being significant in one study, while in three studies, implants placed in a subcrestal position presented greater MBL than crestal implants, with significant differences in only one study. Conclusion: Despite its limitations, the present systematic review did not find better outcomes between crestal and subcrestal implant placement, however, new studies will be needed, involving improved designs and the standardization of protocols to allow statistical comparisons and the drawing of firm conclusions

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  4 / 1984 IBECS  
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Id: FGT-2689 IBECS-Express
Autor: Almiñana-Pastorm, Pedro J; Boronat-Catalá, Montserrat; Micó-Martinez, Pablo; Bellot-Arcís, Carlos; Lopez-Roldan, Andrés; Alpiste-Illueca, Francisco M.
Título: Epigenetics and periodontics: A systematic review
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e659-e672, sept. 2019. graf, tab.
Idioma: en.
doi: 10.4317/medoral.23008.
Resumen: Background: Despite decades of research, our knowledge of several important aspects of periodontal pathogenesis remains incomplete. Epigenetics allows to perform dynamic analysis of different variations in gene expression, providing this great advantage to the static measurement provided by genetic markers. The aim of this systematic review is to analyze the possible relationships between different epigenetic mechanisms and periodontal diseases, and to assess their potential use as biomarkers of periodontitis. Material and Methods: A systematic search was conducted in six databases using MeSH and non-MeSH terms. The review fulfilled PRISMA criteria (Preferred Reporting Items for Systematic reviews and Meta-analysis). Results: 36 studies met the inclusion criteria. Due to the heterogeneity of the articles, it was not possible to conduct quantitative analysis. Regarding qualitative synthesis, however, it was found that epigenetic mechanisms may be used as biological markers of periodontal disease, as their dynamism and molecular stability makes them a valu-able diagnostic tool. Conclusions: Epigenetic markers alter gene expression, producing either silencing or over-expression of molecular transcription that respond to the demands of the cellular surroundings. Gingival crevicular fluid collection is a non-invasive and simple procedure, which makes it an ideal diagnostic medium for detection of both oral and systemic issues. Although further research is needed, this seems to be a promising field of research in the years to come

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  5 / 1984 IBECS  
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Id: FGT-2688 IBECS-Express
Autor: López-Quiles, Juan; Forteza-López, Alba; Montiel, Mónica; Clemente, Celia; Fernández-Tresguerres, Jesús-Ángel; Fernández-Tresguerres, Isabel.
Título: Effects of locally applied Insulin-like Growth Factor-I on osseointegration
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e652-e658, sept. 2019. ilus, graf.
Idioma: en.
doi: 10.4317/medoral.22973.
Resumen: Background: The aim of this study was to assess the effect of local application of IGF-I on osseointegration of dental implants placed in osteoporotic bones. Material and Methods: 16 rabbits were randomly distributed into two groups: eight animals were ovariectomized and fed a low-calcium diet for six weeks, in order to induce experimental osteoporosis, and the others were sham-operated and fed a standard diet. A titanium implant was inserted into the tibiae in both groups. In half of the rabbits, 4 μg of IGF-I was applied into the ostectomy, prior to the implant insertion. A total of 32 implants were placed. Animals were sacrificed two weeks after surgery and decalcified samples were processed for Bone-To-Implant Contact (BIC) and Bone Area Density (BAD) measurements. Analysis of variance (ANOVA) was used for statistical evaluation. P < 0.05 was considered to be significant. Results: Ovariectomy induced statistically significant lower BAD values (p = 0.008) and a tendency towards lower BIC values when compared osteoporotic and healthy groups. The administration of 4 μg of IGF-I did not produce statistically significant differences neither on BIC nor on BAD values, neither in the osteoporotic animals nor in healthy. Conclusions: Within the limitations of this experimental study, local administration of 4 μg of IGF-I was not able to induce any changes in the osseointegration process two weeks after surgery, neither in healthy rabbits nor in the osteoporotic group

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  6 / 1984 IBECS  
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Id: FGT-2687 IBECS-Express
Autor: Cabanes-Gumbau, Guillermo; Pascual-Moscardó, Agustín; Peñarrocha-Oltra, David; García-Mira, Berta; Aizcorbe-Vicente, Javier; Peñarrocha-Diago, María.
Título: Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e643-e651, sept. 2019. ilus, tab, graf.
Idioma: en.
doi: 10.4317/medoral.22946.
Resumen: Background: To evaluate the changes in the peri-implant soft tissues of convergent collar implants with biologically oriented preparation technique (BOPT) crowns, 10 months after loading. Material and Methods: A pilot study was carried out from January 2016 to October 2017 involving 14 patients with one or two implants in the posterior mandibular sector. A total of 32 convergent collar implants were placed using a non-submerged protocol. Three months later the provisional cemented crowns were fitted using the BOPT approach with the finish line 1-1.5 mm below the gingival margin, simulating coronal emergence of a natural tooth. The soft tissue changes were measured with an intraoral scanner at two different time points: a) on the day of provisionalization, before prosthetic loading; and b) 10 months later without the provisional prosthesis. The STL files were superimposed and the soft tissue changes were recorded using a color scale with measurement of the volumetric changes in mm3 Results: A mean increase in peri-implant mucosal volume of 64.7 mm3 was observed in 29 implants. The zones with the greatest increase in soft tissue volume were the papillae of implants with adjacent teeth and the peri-implant buccal margin. Three implants showed a mean decrease in soft tissue volume of -25.1 mm3. Conclusions: The fitting and design of crowns using the biologically oriented preparation technique (BOPT) over convergent collar implants affords a significant increase in peri-implant soft tissue volume both at the level of the papillae and in the buccal margin

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  7 / 1984 IBECS  
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Id: FGT-2686 IBECS-Express
Autor: Díaz-Castro, M Carmen; Falcao, Artur; López-Jarana, Paula; Falcao, Carlos; Ríos-Santos, Jose-Vicente; Fernández-Palacín, Ana; Herrero-Climent, Mariano.
Título: Repeatability of the resonance frequency analysis values in implants with a new technology
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e636-e642, sept. 2019. ilus, tab.
Idioma: en.
doi: 10.4317/medoral.22761.
Resumen: Background: Assess the reliability (by means of reproducibility and repeatability) of the PenguinRFA system, analyse the ISQ values of different implant types and correlate the ISQ with the insertion torque during the placement of the implant. Material and Methods: 120 rough surface implants were placed in bovine bone (type II and III). The implants were divided into groups, according to its design. Once the implants were in place, the exact insertion torque was registered. Then, primary stability was measured by means of the resonance frequency analysis with the PenguinRFA and the Osstell ISQ devices. In each implant two transducers of each device were used. Three measurements were obtained with each transducer. Results: The mean ISQ (implant stability quotient) of the whole sample is 67,70 ± 5,51. The Intraclass Correlation Coefficient (ICC) is 0,933 and 0,944 for transducers 1 and 2 respectively. The reproducibility is 0,906. The mean insertion torque is 24,54 ± 8,96N. The correlation between the ISQ and the insertion torque is 0,507 p < 0,000 (MultiPeg 1) and 0,468 p < 0,000 (MultiPeg 2) for bone type II and 0,533 p < 0,801 (MultiPeg 1) and 0,193 p < 0,140 (MultiPeg 2) for bone type III

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  8 / 1984 IBECS  
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Id: FGT-2685 IBECS-Express
Autor: Silva-Andrade, Natália; López-Ortega, Karem; Gallottini, Marina.
Título: Orofacial features and medical profile of eight individuals with Kabuki syndrome
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e630-e635, sept. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.22982.
Resumen: Background: To evaluate oral, craniofacial and systemic characteristics of eight patients with Kabuki syndrome (KS), aged between 3 and 16 years old. Material and Methods: in this retrospective study, medical records of all patients were reviewed for information on family history, growth and development, medications in use, general systemic complications and oral and craniofacial characteristics. Results: the medical alterations found included recurrent infections such as pneumonia and otitis media (n = 6), cardiovascular malformations (n = 4), kidney abnormalities (n = 2), epilepsy (n = 2) and visual deficiency (n = 2). The individuals exhibited dental caries (n = 5), agenesis (n = 5), delayed tooth eruption (n = 4), cleft lip/palate (n = 2) enamel hypoplasia (n = 2), fusion (n = 1) and microdontia (n = 1). Conclusions: There was a great diversity of oral, craniofacial and systemic characteristic among the KS patients, suggesting that an inter-disciplinary approach should be taken for their dental treatment

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  9 / 1984 IBECS  
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Id: FGT-2684 IBECS-Express
Autor: Fons-Badal, Carla; Agustín-Panadero, Rubén; Solá-Ruíz, M Fernanda; Alpiste-Illueca, Francisco; Fons-Font, Antonio.
Título: Assessment of the capacity of a pyrophosphate-based mouth rinse to inhibit the formation of supragingival dental calculus. A randomized double-blind placebo-controlled clinical trial
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e621-e629, sept. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.23036.
Resumen: Background: This study aimed to analyze the efficacy of an anti-calculus mouth rinse and its possible adverse effects on the mucosa and teeth. Material and Methods: This randomized double-blind placebo-controlled clinical trial included 40 patients with treated and managed periodontal disease, all with a history of rapid calculus formation. Patients used a pyrophos-phate-based test mouth rinse (B) or a placebo (A). A range of parameters were measured for: saliva (saliva flow, pH and chemical composition); calculus (Volpe-Manhold [V-M] index, weight, and volume); adverse effects on mucosa and teeth; and the patients' subjective perceptive of mouth rinse efficacy. Results: the test mouth rinse B produced reductions in urea, uric acid, and phosphorous, calcium, saliva flow, and increases in pH. V-M index and calculus weight decreased after using the test mouth rinse. Calculus volume decreased with both mouth rinses. No changes to the mucosa or teeth were observed. Patients perceived that the test mouth rinse was more effective

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  10 / 1984 IBECS  
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Id: FGT-2683 IBECS-Express
Autor: Cortés-Bretón-Brinkmann, Jorge; Martínez-Rodríguez, Natalia; Barona-Dorado, Cristina; Martín-Ares, María; Sanz-Alonso, Javier; Suárez-García, María Jesús; Prados-Frutos, Juan Carlos; Martínez-González, José María.
Título: Clinical repercussions and epidemiological considerations of supernumerary canines: A 26 case series
Fuente: Med. oral patol. oral cir. bucal (Internet);24(5):e615-e620, sept. 2019. tab, ilus.
Idioma: en.
doi: 10.4317/medoral.23035.
Resumen: Background: To establish the prevalence of supernumerary canines (SNC) in a sector of the population of Madrid (Spain), as well possible complications associated with this unusual developmental variation. Study design: This observational study was performed between 2005 and 2017, among 21,615 patients seeking dental treatment at the Faculty of Dentistry, Complutense University of Madrid (Spain), and at the Virgen de la Paloma Hospital, Madrid (Spain); 22 patients with 26 SNCs were diagnosed. These 22 patients underwent clinical and radiological exploration, registering patient data. Results: SNCs presented a prevalence of 0.10% of the study population. The supernumerary teeth (SNT) were located in the upper maxilla more frequently (61.54%) than the mandible (38.46%). 69.23% were found to be impacted, also causing the impaction of the permanent canine in 53.85% of these cases. In 15.38%, follicular expansion > 3mm was observed. SNCs were associated with other SNT in only four patients. Conclusions: Despite of the fact that the SNCs are usually diagnosed casually in the course of radiological explora-tion, in the present study over half of them (53.85%) caused impaction of the permanent canine. Early diagnosis allows optimal patient management and treatment planning, with intervention at an appropriate time to prevent complications in development and so reduce later treatment need

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