Objective: To assess the effect of implantoplasty on the fracture resistance, surface roughness, and macroscopic morphology of standard diameter (4.1 mm) external connection dental implants. Materials and methods:An in vitro study was conducted in 20 screw-shaped titanium dental implants with an external connection. In 10 implants, the threads and surface were removed and polished with high-speed burs (implantoplasty), while the remaining 10 implants were used as controls. The final implant dimensions were recorded.The newly polished surface quality was assessed by scanning electron microscopy (SEM) and by 3D surface roughness analysis using a confocal laser microscope. Finally, all the implants were subjected to a mechanical pressure resistance test. A descriptive analysis of the data was made. Also, Student's t tests were employed to detect differences regarding the compression tests.Results: Implantoplasty was carried out for a mean time of 10 min and 48 s (standard deviation (SD) of 1 min 22 s). Macroscopically, the resulting surface had a smooth appearance, although small titanium shavings and silicon debris were present. The final surface roughness (S a values 0.1 ± 0.02 μm) was significantly lower than that of the original (0.75 ± 0.08 μm S a ) (p = .005). There was minimal reduction in the implant's inner body diameter (0.19 ± 0.03 mm), and no statistically significant differences were found between the test and control implants regarding the maximum resistance force (896 vs 880 N, respectively).Conclusions: Implantoplasty, although technically demanding and time-consuming, does not seem to significantly alter fracture resistance of standard diameter external connection implants. A smooth surface with S a values below 0.1 μm can be obtained through the use of silicon polishers. A larger sample is required to confirm that implantoplasty does not significantly affect the maximum resistance force of standard diameter external connection implants.

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Resumen: Es frecuente encontrarnos con deformidades o defectos en la cresta alveolar en el frente antero-superior que dificultan la restauración protésica de la zona afectada. El tratamiento de estos defectos intenta la reconstrucción de los tejidos duros y blandos del reborde desdentado para conseguir una dentición adecuada en cuanto a estética, función y salud. Los defectos leves o moderados con poca pérdida de tejido duro se pueden resolver generalmente con aumento de tejidos blandos. Sin embargo, los casos más graves o con pérdida importante de hueso en los que se opte por tratamiento implantológico es necesario el aumento de los tejidos duros y blandos, simultáneo o no a la colocación de fijaciones, en una o varias etapas. El presente artículo describe un procedimiento quirúrgico, mediante un injerto pediculado de tejido conectivo palatino, para el aumento del tejido blando en combinación con procedimientos de regeneración ósea guiada, en defectos localizados en el frente anterior del maxilar superior.

Objective:To ascertain in ammatory response through interleukin 1 presence and identify pathogenic microorganisms as possible immunological and microbiological markers in diagnosis and treatment non-surgical periodontal in patients with gingivitis and moderate chronic periodontitis in a sample of Mexican population. Material and methods: In the present prospective cohort study, 18 patients with signs of gingivitis and 17 patients with moderate chronic periodontitis were selected. Samples of subgingival bio lm and of crevicular gingival uid were collected. Interleukin 1 was RESUMEN Objetivo: Conocer la respuesta in amatoria a través de la presencia de interleucina 1 e identi car microorganismos patógenos como posibles marcadores inmunológicos y microbiológicos en el diagnóstico y tratamiento periodontal no quirúrgico en sujetos con gingivitis y periodontitis crónica moderada en población mexicana. Material y métodos: En este estudio prospectivo de cohortes, se seleccionaron 18 pacientes con signos clínicos de gingivitis y 17 pacientes con periodontitis crónica moderada, se recolectaron las muestras de biopelícula subgingival y de uido gingival crevicular. Non surgical periodontal treatment in patients with gingivitis and moderate periodontitis. Biochemical and microbiological response Tratamiento periodontal no quirúrgico en pacientes con gingivitis y periodontitis moderada. Respuesta bioquímica y microbiológicaAbbreviations: Units Base 10 logarithm = log Microliters = L Milliliters = mL Pictograms = pg Percentage = % Revolutions per minute = rpm Seconds = sec www.medigraphic.org.mx pp e151-e160 e152 Macín-Cabrera S et al. Non surgical periodontal treatment. Biochemical and microbiological response www.medigraphic.org.mx