Peri-implant keratinized mucosa (PIKM) augmentation refers to surgical procedures aimed at increasing the width of PIKM. Consensus reports emphasize the necessity of maintaining a minimum width of PIKM to ensure long-term peri-implant health. Currently, several surgical techniques have been validated for their effectiveness in increasing PIKM. However, the selection and application of PIKM augmentation methods may present challenges for dental practitioners due to heterogeneity in surgical techniques, variations in clinical scenarios, and anatomical differences. Therefore, clear guidelines and considerations for PIKM augmentation are needed. This expert consensus focuses on the commonly employed surgical techniques for PIKM augmentation and the factors influencing their selection at second-stage surgery. It aims to establish a standardized framework for assessing, planning, and executing PIKM augmentation procedures, with the goal of offering evidence-based guidance to enhance the predictability and success of PIKM augmentation.
Humans ; Consensus ; Dental Implants ; Mouth Mucosa/surgery* ; Keratins

Objective:To investigate the influencing factors for unfavorable outcome of low-grade aneurysmal subarachnoid hemorrhage (aSAH).Methods:A retrospective study was performed. The clinical data of 273 patients with aSAH of World Federation of Neurosurgery (WNFS) grading I and II, admitted to our hospital from April 2017 to March 2021, were collected. According to modified Rankin scale (mRS) scores 3 months after treatment, these patients were divided into favorable outcome group (mRS scores of 0-2) and unfavorable outcome group (mRS scores of 3-6). Statistical methods were used to analyze the clinical and imaging data differences between the two groups and identify the independent influencing factors for unfavorable outcome. Receiver operating characteristic (ROC) curves were drawn to evaluate the predictive values of different independent factors in unfavorable outcome.Results:Among the 273 patients with low-grade aSAH, 45 patients had unfavorable outcome and 228 patients had favorable outcome. Univariate analysis showed that there was significant difference between the 2 groups in age, Fisher grading distribution, proportions of patients complicated with shunt dependent hydrocephalus, with delayed cerebral ischemia, or with intracranial hemorrhage, and WNFS grading ( P<0.05). Multivariate Logistic regression analysis showed that concurrent shunt dependent hydrocephalus ( OR=5.075, 95%CI: 1.705-15.102, P=0.004), age ( OR=1.090, 95%CI: 1.036-1.147, P=0.004), delayed cerebral ischemia ( OR=8.282, 95%CI: 3.447-19.896, P=0.000), and postoperative intracranial hemorrhage ( OR=8.603, 95%CI: 2.332-31.745, P=0.001) were independent influencing factors for unfavorable outcome. ROC curve analysis showed that the optimal diagnostic threshold of age was 65 years, and the areas under ROC curve for delayed cerebral ischemia and age in predicting unfavorable outcome were 0.733 ( 95%CI: 0.653-0.813, P=0.000) and 0.709 ( 95%CI: 0.622-0.796, P=0.000). Conclusion:Low-grade aSAH patients with age≥65, postoperative shunt dependent hydrocephalus, delayed cerebral ischemia, and intracranial hemorrhage are more likely to have unfavorable outcome; age and complicated delayed cerebral ischemia have certain diagnostic value in low-grade aSAH patients.

Objective To investigate the stigma of patients with rectal cancer and permanent enterostomy and its influencing factors. Methods Totally 101 patients with rectal cancer and permanent enterostomy were selected from six tertiary hospitals of a province in central China from September 2013 to October 2014 by convenience sampling method. The questionnaire survey and social impact scale( SIS) were used to investigate participants′ general information and stigma issues. T-test,analysis of variance (ANOVA),and linear multivariate stepwise regression analysis were used to analyze the influencing factors of stigma. Results The total SIS score of 101 participants was( 60.7±10.4). The scores for social exclusion, economic discrimination,intrinsic stigma,and social isolation were( 21.8±4.3),(8.0±1.9),(12.7±2.5) and (18.2±3.6). The scores of all dimensions in SIS for patients with rectal cancer and enterostomy were higher than general cancer patients. The top five items were:need more concern,adverse impact on career,embarrassing conditions,economic burden,and worse health status. Single factor analysis and multiple-factor analysis indicated that the communication with doctors and nurses had an impact on patients′ stigma level(P < 0.05). Conclusions The stigma of patients with rectal cancer and enterostomy was at a moderate level,and it can be influenced by the communication with medical staff. Thus,patients should be taught about the nursing skills and mental adjustment methods before their discharge. After their discharge,continuous nursing care and other supports( e.g. providing professional information,organizing communicating and educational activities,and cooperating with community nurses) should be achieved.

PurposeTo study the relationship between the nuclear DNA contents and colorectal cancer.MethodsThe nuclear DNA contents were measured by automatic image analysis technique in 21 cases with normal colorectal mucosa,and in 32 cases with colorectal cancer. ResultsThe DNA index(DI), proliferation index(PI), S %, ＞ 5C% and detection rate of aneuploidy were significantly higher than those of normal colorectal mucosa group. DNA polidy pattern of colorectal cancer group were type Ⅲ and Ⅳ, but that of normal colorectal mucosa group was only type Ⅰ . ConclusionsThe DNA content was related to the degree of differentiation of tumor, size of tumor, situs of tumor and prognosis, not related to age or sex. Measuring nuclear DNA content in colorectal cancer was useful for diagnosing colorectal cancer, understanding the biological characteristic, assessing patient prognosis.

Objective To explore the Schistosoma japonicum cercariae collected method and the quantity of cercariae obtained from a great quantity artificial infected snails. Methods In laboratory condition, Oncomelania snails were infected with schistosome miracidia. Sixty days post-infection all snails were divided into 7 shares. Cercariae shed from 1 share snails every day and the number of all shedding days were 40. Cercariae shed from snails were collected with low-velocity centrifuge and the cercariae sediment were weighted. Results One thousand and nine hundred g snails bred for 120 days post-infection, the infection and survival rates were 36. 00% and 51. 58%. Cercariae col-lected were 10. 5 g from 40 days collection. Cercariae quantity of shedding from 1 000 positive snails per day was 0. 257 4 g.