The Efficacy of Platelets Rich Plasma Injection in the Superior Joint Space of the Tempromandibular Joint Guided by Ultra Sound in Patients with Non-reducing Disk Displacement

Objective

The objective of this study was to determine average improvement during the rest and active mouth opening after ultrasound guided platelets rich plasma injection in the tempromandibular superior joint space for the patients complaining from non-reducing disk displacement.

Patients and Methods

Thirty-four patients with non-reducing disk displacement underwent guided ultrasound injection of platelet rich plasma to the upper joint space. The extent of maximal mouth opening, chewing efficiency, sound intensity of the TMJ, and tenderness of the TMJ and the masticatory muscles at rest, motion and mastication were thoroughly assessed at the beginning of the study and scheduled for next follow-up at 1st, 3rd, and 6th months.

Results

Injection with platelets rich plasma was significantly more effective in improvements of the extent of maximal mouth opening, statistics result demonstrated a significant reduction in the VAS values of pain at rest, motion and mastication compared to the baseline VAS values.

Conclusion

PRP injection to the upper temporomandibular joint space provided improvement in signs and symptoms of patient with non-reducing disk displacement of the temporomandibular joint.

     

Parents' Knowledge and Beliefs about the Impact of Exposure to Media Violence on Children's Aggression

The current study aimed to assess Jordanian parents' knowledge and beliefs about the effects of violent media on children's aggressive behavior. A sample of 262 parents of children aged 6–11 years completed a Media Quotient questionnaire about children's media habits, media effects, and children's aggressive behavior. Parents reported that their children spend an average of 4.83 h (SD = 2.12) watching TV, 3.20 h (SD = 2.29) playing video games, 1.07 h (SD = 0.88) listening to music, and only 0.52 min (SD = 0.67) reading for pleasure per day. Parents have a moderate level of knowledge about the media effect (M = 15.49, SD = 3.439). Children of parents who have adequate knowledge about the media effect, spend less time watching TV (r = ?.355, p < .001), playing video games (r = ?.265, p < .001), and listening to music (r = ?.347, p < .001). Ninety-two percent (n = 241) of parents were concerned about the amount of sexual and of violent content their children see in movies or on TV. Children who spend more time playing video games (r = ?.201, p = .004) show aggressive relational behavior. This study suggests that increasing parents' knowledge of media of evidence-based programs may have a protective effect on children's behavior.     

Haploidentical stem cell transplantation as a salvage therapy for cord blood engraftment failure in a patient with Fanconi anemia

A 7‐year‐old male with Fanconi Anemia who developed primary graft failure following one antigen‐mismatched unrelated cord blood transplantation and a nonradiation‐based conditioning, underwent a second hematopoietic stem cell transplantation (HSCT) from his 2‐loci mismatched haploidentical father, using a nonradiation‐based regimen, 79 days after the first HSCT. A sustained hematological engraftment was achieved at 9 days post‐second HSCT. At 15 months post‐second HSCT; the patient demonstrated normal blood counts, sustained donor chimerism, and no evidence of GVHD. Haploidentical HSCTs as primary or secondary sources of stem cells, with appropriate T‐cell depletion, may be a readily available option in the absence of HLA‐matched related or unrelated donors. Pediatr Blood Cancer. 2010;55:580–582. © 2010 Wiley‐Liss, Inc.     

脆壁克鲁维酵母乳糖酶提取物性质研究

研究了脆壁克鲁维酵母菌乳糖酶的性质,该酶作用最适ｐＨ在６．５～７．０,最适温度为６７℃,５０℃保温１５ｍｉｎ残留酶活性为８４．０２％,该酶在ｐＨ５．８～７．３范围内比较稳定,以ＯＮＰＧ和乳糖为底物的米氏常数为１．１６ｍｍｏｌ／Ｌ和５．６３ｍｍｏｌ／Ｌ,Ｍｎ＾２＋,Ｍｇ＾２＋,Ｎａ＾２＋,Ｋ＾＋及微量Ｃａ＾２＋对酶有激活作用。     

The periodontal restorative interface: esthetic considerations

Esthetic considerations are a significant contributing factor in the management of prosthodontic cases and an interdisciplinary approach is often necessary to achieve an optimal result. The visible soft‐tissue architecture plays a key role in developing an esthetic smile. Furthermore, an understanding of the relationship between the restorative margin and the gingiva is important for long‐term stability of the result. The gingival architecture and gingival health are important for ensuring optimal esthetics following prosthodontic work and close attention to both soft and hard tissues around the teeth, before, during and after restorative procedures, will greatly improve the likelihood of a successful outcome. Moreover, knowing the options available in periodontal plastic surgery is important in esthetic dentistry today. The relevant literature related to restorative and surgical procedures when performing esthetic dentistry are reviewed in this article, and different approaches are illustrated with appropriate cases to explain the treatment approach that was utilized to improve the esthetic appearance of the case.