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  1 / 1930 IBECS  
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Id: ET3-2372 IBECS-Express
Autor: Monteiro, Luis; Delgado, Maria- Leonor; Garcês, Fernanda; Machado, Mariana; Ferreira, Fernando; Martins, Marco; Salazar, Filomena; Pacheco, José-Júlio.
Título: A histological evaluation of the surgical margins from human oral fibrous-epithelial lesions excised with CO2 laser, Diode laser, Er:YAG laser, Nd: YAG laser, electrosurgical scalpel and cold scalpel
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e271-e280, mar. 2019. tab, ilus, graf.
Idioma: en.
doi: 10.4317/medoral.22819.
Resumen: Background: We aim to evaluate the presence of histological artefacts in the surgical margins of human oral fibro-epithelial hyperplasias excised with lasers of different wavelengths, and also electrosurgical scalpel and cold scalpel. Moreover, we aim to determine if some of these instruments could impair the normal histological diagnosis of these lesions. Material and Methods: We included 130 consecutive surgical samples of 80 females and 50 males (mean age of 53.82±16.55) with a histological diagnosis of an oral benign fibrous-epithelial hyperplasias. The samples were categorized into 6 groups according to the type of instrument used: CO2 laser group, diode laser group, Er:YAG laser group, Nd:YAG laser group, electrosurgical scalpel group and cold scalpel group. Histological instrument-induced changes were microscopic evaluated and related with clinical and pathological variables. Results: The instrument with highest tissue damage extension (TDE) was the electrosurgical scalpel (1002.2μm±434.92), followed by diode laser (913.73 μm±322.45), Nd:YAG (899.83μm±327.75), CO2 laser (538.37μm±170.50), Er:YAG laser (166.47μm±123.85), and at last with fewer alterations the cold scalpel group (2.36μm±7.27) (P < 0.001). The most regular incision was observed in CO2 laser group, followed by Er:YAG laser, Nd:YAG laser, electrosurgical scalpel and diode laser group with the less regular incision using cold scalpel as comparison (P < 0.001). A correlation was found between the incision score and TDE (P < 0.001). Regarding histological diagnosis, no case showed any limitation of diagnosis related with the use of any instrument evaluated. Conclusions: Our results suggest that lasers can be used for the excision of oral benign fibrous-epithelial hyperplasias, without hispathological diagnosis limitations, as long as the physical properties of each laser are known and respected. Er:YAG laser have shown to be a laser with few tissue damage extension and with good incision regularity, been a possible instrument of choice for the surgical removal of these lesions

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  2 / 1930 IBECS  
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Id: ET3-2371 IBECS-Express
Autor: Yasin-Ertem, Sinam; Altay, Hilal; Hasanoglu-Erbasar, Neda.
Título: The evaluation of apicectomy without retrograde filling in terms of lesion size localization and approximation to the anatomic structures
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e265-e270, mar. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.22834.
Resumen: Background: The purpose of this study was to evaluate of the patients who underwent apical resection. Besides assess the classification of resection side, localization, lesion size, approximation of anatomic estructures and the purpose of the apical surgery retrospectively. Material and Methods: In this stutdy 782 patients and 1191 apical resection applied tooth evaluated. 504 of the patients were famale and 278 were male. Patients age was between 13 and 76 years old and operated between January 2016 and January 2017. The study includes incisor, canine and premolar teeth which had the apical resection as the first time. Operation side evaluated from orthopantomograph and periapical radiographs. Results: There were 1191 teeth operated and 966 of them in maxilla and 225 of them in mandible. The number of the incisor teeth were 871, 177 were canine, 129 were premolar and one of them was molar. The total amount of 468 patients had operated by just 1 tooth, 454 of the operated teeth had cyst on the operation side. Premolar and molar side 21 of the 93 lesion had approximation with maxillar sinus. On the other hand in maxilla 39 of 569 lesion had approximation with nasal cavity. In mandibula 1 of the 15 lesion, which involved mandibular premolar teeth, had approximation with mental foramen. Conclusions: Apical resection operation mostly done for one tooth, and the lesion size was less than 10 milimeters. Furthermore apical resection mostly done for incisors cause of odontogenic cyst

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  3 / 1930 IBECS  
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Id: ET3-2370 IBECS-Express
Autor: Díaz-Sánchez, Rosa María; Delgado-Muñoz, José María; Serrera-Figallo, María-Ángeles; González-Martín, María-Isabel; Torres-Lagares, Daniel; Gutiérrez-Pérez, José-Luis.
Título: Analysis of marginal bone loss and implant stability quotient by resonance frequency analysis in different osteointegrated implant systems. Randomized prospective clinical trial
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e260-e264, mar. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.22742.
Resumen: Background: The aim of the present prospective clinical study is to compare the stability of the implant-bone interface by the ISQ quotient and marginal bone loss (MBL) rate during one year of follow-up in four system implants with the same surface and different design. Material and Methods: Prospective randomized clinical trial of 21 patients in which four implant systems with the same surface and different design were placed. Patients were treated by the same operator following a similar surgical protocol with submerged technique. The second surgery to perform the prosthesis was performed at 3 months. All patients went to their review at 6 months and a year. A periapical radiograph for crestal bone analysis and an Implant stability quotient by resonance frequency analysis (ISQ) analysis were taken at baseline and the reviews. Results: No statistically significant differences were found in the Implant stability quotient by resonance frequency analysis and Marginal Bone Loss in the four types of implants. The ISQ increased from the moment of insertion of the implant until the revision to the year, showing an increase of the stability implant, being this increasing less between the 6 months and the year. Conclusions: Differences in the design of the four implants tested in this study did not show statistically significant differences in any of the variables studied, so the implant design does not influence implant stability and marginal bone loss in the first year after placement

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  4 / 1930 IBECS  
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Id: ET3-2369 IBECS-Express
Autor: Geckili, Onur; Bilhan, Hakan; Geckili, Esma; Barca-Dayan, Ece; Dayan, Cagatay; Bural, Canan.
Título: Is clinical experience important for obtaining the primary stability of dental implants with aggressive threads? An ex vivo study
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e254-e259, mar. 2019. ilus, tab.
Idioma: en.
doi: 10.4317/medoral.22733.
Resumen: Background: The aim of this study was to investigate the clinicians' experience on maintaining the primary stability of implants with aggressive threads belonging to a novel dental implant system. Material and Methods: Three hundred implants with aggressive threads were inserted in fresh bovine ribs mimicking Type IV bone by five clinicians which were classified according to their previous experience of total number of implant insertion. An independent examiner measured the primary stability of all implants after insertion by using resonance frequency analysis (RFA), electronic percussive testing (EPT) and removal torque methods. Results: No significant differences were detected between the stability values measured by the clinicians (p> 0.05) except the Periotest values (PTVs) of the non-experienced clinician. PTVs of the non-experienced clinician were significantly higher than the PTVs of the expert and good clinicians (p<0.05). Significantly higher stability values were detected in the secondary insertion of the non-experienced clinician as compared to her initial insertion values (p<0.05). No significant differences were detected between the first and second measurements of the other clinicians (p> 0.05). Conclusions: Within the limitations of this ex-vivo study, it may be concluded that experience does not play an important role in maintaining the stability of implants with aggressive threads

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  5 / 1930 IBECS  
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Id: ET3-2368 IBECS-Express
Autor: Marlière, Daniel-Amaral-Alves; Demétrio, Mauricio-Soñva; Schmitt, Alan-Robert-Moreira; Lovisi, Caio-Bellini; Asprino, Luciana; Chaves-Netto, Henrique-Duque-de Miranda.
Título: Accuracy between virtual surgical planning and actual outcomes in orthognathic surgery by iterative closest point algorithm and color maps: A retrospective cohort study
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e243-e253, mar. 2019. graf, ilus, tab.
Idioma: en.
doi: 10.4317/medoral.22724.
Resumen: Background: To evaluate the accuracy between actual outcomes and virtual surgical planning (VSP) in orthognathic surgery regarding the use of three-dimensional (3D) surface models for registration using iterative closest point (ICP) algorithm and generated color maps. Material and Methods: Construction of planning and postoperative 3D models in STL files format (M0 and M1, respectively) from CBCT of 25 subjects who had been submitted to bimaxillary orthognathic surgery was performed. M0 and M1 were sent to Geomagic software in semi-automatic alignment surface mesh order of M0 and M1 for registration using ICP algorithm to calculate mean deviation (MD, MD+, MD-, SD) and root mean square (RMS û 3D Error). Color maps were generated to assess qualitative congruence between M0 and M1. From devia¬tion analysis, 3D Error was defined as accuracy measurement. To assess the reproducibility, the workflow was performed by two evaluators multiple times. t-tests were used to assess whether all means of MD, MD+, MD-, SD and 3D Error values would be ≤ - 2 mm and ≥ 2 mm. Results: High intra and inter evaluators correlation were found, supporting the reproducibility of the workflow. t-tests proved that all MDs and 3D Error values were > - 2 mm and < 2 mm. Conclusions: 3D error mean was within the standards of clinical success lower than 2 mm. ICP algorithm provided a reproducible method of alignment between 3D models and generated color maps to evaluate 3D congruence but did not answer all methodological parameters regarding the assessment of accuracy in orthognathic surgery

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  6 / 1930 IBECS  
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Id: ET3-2367 IBECS-Express
Autor: Meng, Li; Shen, Jun; Liu, Hao; Zhang, Jian-Cheng; Peng, Xin; Mao, Chi; Cai, Zhi-Gang; Zheng, Lei; Shan, Xiao-Feng; Yan, Ying-Bin.
Título: Comparison of the subjective satisfaction of the donor site morbidity: Free radial forearm flap versus anterolateral thigh flap for reconstruction in tongue cancer patients
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e236-e242, mar. 2019. tab, graf.
Idioma: en.
doi: 10.4317/medoral.22679.
Resumen: Background: The purpose of the study was to compare the differences of the subjective satisfaction of the donor site morbidity between the free radial forearm flap (FRFF) and anterolateral thigh flap (ALTF) for tongue reconstruction. Material and Methods: One hundred and nineteen patients underwent FRFF or ALTF reconstruction were retrospectively evaluated by a standardized self-established donor site morbidity questionnaire which included 5 domains, sensibility, movement disabilities, cosmetics, social activities and general impacts on the quality of life. Results: The Cronbach's coefficient alpha of the questionnaire was 0.707. The exploratory factor analysis revealed that the 5 items of the questionnaire might load onto two distinct subscales. Patients with ALTF had higher scores in the sensibility, cosmetics and the composite score (P < 0.05). No significant differences were found in the movement disabilities, social activities and general impacts on the quality of life between the two groups (P > 0.05). Conclusions: ALTF has the advantage of better results of donor site morbidity, such as sensibility and cosmetics, over FRFF

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Responsable: BNCS


  7 / 1930 IBECS  
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Id: ET3-2366 IBECS-Express
Autor: Choi, Yun-Jeong; Byun, Jin-Seok; Choi, Jae-Kap; Jung, Jae-Kwang.
Título: Identification of predictive variables for the recurrence of oral mucocele
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e231-e235, mar. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.22690.
Resumen: Background: Oral mucocele is the most common minor salivary gland lesion with good prognosis after surgical removal. However, its recurrence is not rare, sometimes bothersome. This study aimed to identify the possible predictive variables affecting the recurrence rate of oral mucocele. Material and Methods: The histoclinical data of 164 patients diagnosed with oral mucocele were retrospectively obtained by reviewing dental records. The predictive variables for its recurrence were identified by analyzing its recurrence rate according to clinical variables. Results: The recurrence rate showed the significant differences according to location and age. Oral mucocele recurred with significantly higher frequency on the ventral mucosa of tongue (50.0%) than on the labial/buccal mucosa (8.8%). Its recurrence was significantly more common in the younger patients (aged < 30 years, 16.0%) than in the older patients (aged ≥ 30 years, 4.4%). However, there was no significant difference in recurrence rates between surgical procedures using scalpels and those using lasers. Conclusions: Patients with oral mucocele should be more carefully informed of its possible recurrence, especially when it is found on the ventral surface of the tongue or in a younger population

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  8 / 1930 IBECS  
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Id: ET3-2365 IBECS-Express
Autor: Schmidt-Westhausen, Andrea M; Neumann, Konrad; Reichart, Peter A; Jackowski, Jocken.
Título: Implants in patients with oral manifestations of autoimmune or muco-cutaneous diseases - A systematic review
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e217-e230, mar. 2019. tab, graf.
Idioma: en.
doi: 10.4317/medoral.22786.
Resumen: Background: To give an overview on implant survival rates in patients with oral manifestations of systemic auto¬immune (oral Lichen planus (oLp), Pemphigus (Pe)), muco-cutaneous (Epidermolysis bullosa (EB)), autoimmune multisystemic rheumatic diseases (Sjögrenïs syndrome (SjS), systemic Lupus erythematosus (sLE), or systemic Sclerosis (sSc)). Material and Methods: Systematic literature review (PubMed/Medline, Embase) using MESH and search term combinations, published between 1980 and August 2018 in English language reporting on dental implant-pros¬thetic rehabilitation of patients with oLp, Pe, EB, SjS, sLE, sSc, study design, age, gender, follow-up period (≥ 12 months), implant survival rate. Implant-related weighed mean values of implant survival rate (wmSR) were calculated. Results: After a mean follow-up period (mfp) of 44.6 months, a wmSR of 98.3 % was calculated from data pub-lished for patients with oLp (100 patients with 302 implants). Data of 27 patients (152 implants) with EB revealed wmSR of 98.7 % following mfp of 32.6 months. For 71 patients (272 implants) with SjS, wmSR was 94.2 % follow¬ing a mfp of 45.2 months, and for 6 patients (44 implants) with sSc, wmSR was 97.7 % after mfp of 37.5 months. One case report on one patient each with Pe (two implants) as well as sLE (6 implants) showed 100 % SR following at least 24 months. Conclusions: Guidelines regarding implant treatment of patients with oLp, Pe, EB, SjS, sLE or sSc do not exist nor are contraindicating conditions defined. Implant survival rates of patients affected are comparable to those of healthy patients. For implant-prosthetic rehabilitation of patients with Pe and sLE no conclusions can be drawn due to lack of sufficient clinical data. Implant-prosthetic treatment guidelines regarding healthy patients should be strictly fol¬lowed, but frequent recall is recommended in patients affected with oLp, SjS, EB, SSc, Pe or sLE

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  9 / 1930 IBECS  
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Id: ET3-2364 IBECS-Express
Autor: Menezes, Cláudia RSD; Pereira, Antônio LA; Ribeiro, Cecilia CC; Chaves, Clàudia O; Guerra, Rosane NM; Thomaz, Érika BAF; Monteiro-Neto, Valèrio; Alves, Claudia MC.
Título: Is there association between chronic kidney disease and dental caries? A case-controlled study
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e211-e216, mar. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.22737.
Resumen: Background: The purpose of this study was to assess the association between chronic kidney diseases (CKD) and dental caries. Material and Methods: 107 patients with CKD and 107 with no systemic alteration were randomly included. DMFT (decayed, missing, and filled teeth), plaque index, colony-forming units (CFU) of Streptococcus mutans and salivary composition (IgA total, IgA anti-Streptococcus mutans, calcium and urea) were evaluated. McNemar and Wilcoxon tests were used to compare test and control groups. Spearman test was used to correlate time of hemodialysis and variables studied. Associations between variables were evaluated by logistic regression analysis. Results: The number of filled teeth, the amount of IgA anti-Streptococcus mutans, salivary urea, education level, monthly income and the amount of CFU of Streptococcus mutans were statistically different between groups. There was a positive correlation between the duration of hemodialysis (Hd) and the amount of IgA anti-Streptococcus mutans, urea in saliva, and the number of CFU of Streptococcus mutans. In the adjusted model, a higher incidence of CFU mutans streptococci, elevated salivary urea, smaller number of filled teeth, lower DMFT, and less calcium salivary were associated with CKD. Conclusions: Programs to prevent and treat oral problems and regular follow-up at the beginning of dialysis are necessary to increase patients' awareness of their condition

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  10 / 1930 IBECS  
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Id: ET3-2363 IBECS-Express
Autor: Gutierrez, Gabriela-Mancia; Siqueira, Vanessa-Lira; Loyola-Rodriguez, Juan-Pablo; Diniz, Michele-Baffi; Guaré, Renata-Oliveira; Ferreira, Ana-Cristina-Fernandes-Maria; Santos, Maria-Teresa-Botti-Rodrigues.
Título: Effects of treatments for drooling on caries risk in children and adolescents with cerebral palsy
Fuente: Med. oral patol. oral cir. bucal (Internet);24(2):e204-e210, mar. 2019. tab.
Idioma: en.
doi: 10.4317/medoral.22729.
Resumen: Background: Neuromuscular impairment makes individuals with cerebral palsy (CP) more prone to drooling. Among the treatment options, there are procedures that interfere with saliva production. It is imperative to evaluate the effect of the different modalities since the reduction in salivary flow rate/production may exacerbate the risk of dental caries. Material and Methods: The aim of this study was to compare the effects of different treatments for drooling on caries risk and salivary parameters in children and adolescents with CP. Study design: A total of 142 children and adolescents with CP, aged 6 to 18 years, were assigned to groups based on the different treatments they had received for drooling: G1-anticholinergic drugs (n = 18), G2-botulinum toxin injection (n = 16), G3-salivary glands surgery (n = 16), G4-no treatment (n = 42), and G5-non-drooling subjects (n = 50). All participants were evaluated on the Simplified Oral Hygiene Index, and for the prevalence of dental caries (decayed, missing, and filled teeth index and white spot lesions). Unstimulated whole saliva was collected, and salivary flow rate and osmolality were measured. Chi-square, ANOVA and Poisson regression were calculated. Prevalence ratios and their respective 95 % confidence intervals were obtained. The significance level was fixed at 5%. Results: No differences were found in the decayed, missing, and filled teeth index (p = 0.128) and Simplified Oral Hygiene Index (p = 0.674) among the different groups. G3 presented significantly higher percentages of WSL (p < 0.001), lower values of salivary flow rate (p < 0.001), and higher values of osmolality (p < 0.001). The white spot lesion prevalence ratio was higher only for G3 (Prevalence ratio = 14.36; IC 95% = 4.64-44.40; p < 0.001). Conclusions: Children and adolescents with CP who had received surgical treatment for drooling exhibited higher number of white spot lesions because of the reduced salivary flow rate and higher salivary osmolality

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