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The research method based on the spectrum-effect relationship helps provide new research ideas and strategies for the study of the basis of the medicinal materials and quality control of traditional Chinese medicine.
Apical periodontitis is among the most common pathologies in endodontics. The treatment of apical periodontitis has always been an important occupation in the modern practice of endodontics, and the failure has been associated with nonhermetic root canal filling. With that in mind, bioceramic-based sealers have been incorporated into endodontic practice. The purpose of this study was to evaluate the outcome of nonsurgical root canal treatment (RCT), using a single-cone and Bioroot RCS filling of necrotic teeth with apical periodontitis.
This follow-up study included patients treated in the department of Restorative Dentistry and Endodontics in the Dental Clinic of Monastir, from January 2018 to December 2019. The study intended to include all adult patients presenting a symptomatic or asymptomatic apical periodontitis. Once the diagnosis was performed, the patients were divided into two groups a one-session treatment group and a two-session treatment group. All cases were obtured with BioRoot using a single-cone technique with a minimum of a 6-month recall. At 6-month follow-ups, teeth were classified as healed, healing (success), or not healed (failure), based on clinical and radiographic findings.
Twelve patients met the inclusion criteria, six patients per group. Seven patients returned for follow-ups. Cu-CPT22 purchase At 6-month follow-ups, the overall success rate was 100%, with 57.1% determined to be "healed" and 42.8% determined to be "healing." All the PAI scores decreased compared to the baseline situation.
The results obtained showed the contribution of BioRoot RCS in the healing of periapical lesions. Accordingly, bioceramic-based sealers seem to optimize the prognosis of root canal treatments.
The results obtained showed the contribution of BioRoot RCS in the healing of periapical lesions. Accordingly, bioceramic-based sealers seem to optimize the prognosis of root canal treatments.This study evaluated the effect of different surface treatments on the tensile bond strength between lithium disilicate glass-ceramics, resin cement, and dentin. Fifty truncated cone-shape glass-ceramics were divided into five groups (n = 10) G1, control 10% hydrofluoric acid (HF); G2, NdYAG laser + silane; G3, Sil + NdYAG laser; G4, graphite + NdYAG laser + Sil; and G5, graphite + Sil + NdYAG laser. Fifty human third-molars were cut to cylindrical shape and polished to standardize the bonding surfaces. The glass-ceramic specimens were bonded to dentin with a dual-cured resin cement and stored in distilled water for 24 h at 37ºC. Tensile testing was performed on a universal testing machine (10 Kgf load cell at 1 mm/min) until failure. The bond strength values (mean ± SD) in MPa were G1 (9.4 ± 2.3), G2 (9.7 ± 2.0), G3 (6.7 ± 1.9), G4 (4.6 ± 1.1), and G5 (1.2 ± 0.3). NdYAG laser and HF improve the bond strength between lithium disilicate glass-ceramics, resin cement, and dentin. The application of a graphite layer prior to NdYAG laser irradiation negatively affects this bonding and presented inferior results.
To investigate the related factors of skin damage caused by peripherally inserted central catheter (PICC) in cancer patients.
It was a retrospective analysis of 202 cancer patients admitted to our hospital from February 2014 to July 2019. 50 cases of PICC-related skin damage and 152 cases of non-skin damage were studied. In addition, multivariate logistic regression analysis was used to determine independent risk factors for PICC-related skin damage, including cancer patients with catheter-related skin damage and patients without skin damage.
50 patients with PICC skin damage (19 males and 31 females) and 152 patients without skin damage (62 males and 90 females) were retrospectively analyzed. The skin damage rate was 24.8%. The analysis of variance results showed that many factors are related to PICC catheter-related skin damage, including hormones (
/
= 4.468,
< 0.05), body mass index (BMI) (
/
= -2.443,
< 0.05), days with tube (
= 26.230,
< 0.05), chemotherapy cycle (
/
= 25.638,
< 0.05), and self-care ability (
/
= -1.968,
< 0.05). Logistic regression analysis showed that hormones (odds ratio (OR) = 3.896,
=0.045), BMI (OR = 1.129,
=0.017), days with tube (OR = 0.419,
=0.013), and chemotherapy cycle (OR = 3.302,
=0.028) are independent factors affecting PICC-related skin damage.
The independent influencing factors of skin damage during PICC catheterization are hormones, BMI, number of days with tube, and chemotherapy cycle.
The independent influencing factors of skin damage during PICC catheterization are hormones, BMI, number of days with tube, and chemotherapy cycle.
Pancreaticoduodenectomy (PD) with superior mesenteric vein (SMV) reconstruction are often required to achieve complete (R0) resection for pancreatic head cancer (PHC) with tumor invasion of the SMV. Augmented reality (AR) technology can be used to assist in determining the extent of SMV involvement by superimposing virtual 3-dimensional (3D) images of the pancreas and regional vasculature on the surgical field.
Three patients with PHC and tumor invasion of the SMV underwent AR-assisted PD with SMV resection and reconstruction following preoperative computed tomography scanning. Preoperative imaging data were used to reconstruct 3D images of anatomical structures, including the tumor, portal vein (PV), SMV, and splenic vein (SV). Using AR software installed on a smart phone, the reconstructed 3D images were superimposed on the surgical field as viewed in a smart phone display to provide intermittent navigational assistance to the surgeon in identifying the boundaries of PHC tumor invasion for resection of the vessels involved.
All patients successfully completed the operation. Intraoperative AR applications displayed virtual images of the pancreas, SMV, bile duct, common hepatic artery (CHA), and superior mesenteric artery (SMA). Two patients required end-to-end anastomosis for reconstruction of the SMV. One patient required allogenic vascular bypass to reconstruct the SMV-PV juncture with concomitant reconstruction of the SV-SMV confluence by end-to-side anastomosis of the SV and bypass vessel. Postoperative pathology confirmed R0 resections for all patients.
AR navigation technology based on preoperative CT image data can assist surgeons performing PD with SMV resection and reconstruction.
AR navigation technology based on preoperative CT image data can assist surgeons performing PD with SMV resection and reconstruction.
