Yitschaky Oded, Katorza Anat, Zini Avraham, Yitschaky Michael, Zadik Yehuda
Attending, Department of Orthodontics, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Dental Student, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2016 Jan;121(1):39-42. doi: 10.1016/j.oooo.2015.10.001. Epub 2015 Oct 22.
Denture enhances the risk of Candida colonization because of adherence to acrylic base and interference with salivary rinsing. Acrylic orthodontic appliances may also create retentive areas for food debris and microbial pathogens; moreover, patients are instructed to use the retainers at night, when salivary secretion is reduced. We studied the Candida colonization in orthodontic patients using acrylic retainer.
Participants were orthodontic patients with full compliance during the retention phase with no signs or symptoms or being at risk for Candida, divided into users of (a) Hawley retainer (study group) and (b) other retainers (vacuum-formed/fixed bonded retainer; control group). Collected data included demographic characteristics and habits. Samples were collected from palate mucosa, cultured and incubated (28°C) for 3 days. Positive Candida species were recultured to identify the Candida species.
Fifty-one patients participated (mean age 20.9 ± 9.6 years); 22 had maxillary Hawley retainer and 29 had maxillary vacuum-formed/fixed bonded retainer. Candida albicans colonization in the hard palate was identified in 2 patients (3.9%)-1 (4.5%) from the Hawley retainer study group and 1 (3.4%) from the control group.
The hypothesis that palatal coverage by acrylic orthodontic retainer might enhance Candida colonization on the palatal mucosa is not supported by this pilot study.
假牙由于附着在丙烯酸基托上并干扰唾液冲洗，会增加念珠菌定植的风险。丙烯酸正畸矫治器也可能为食物残渣和微生物病原体创造滞留区域；此外，患者被要求在夜间使用保持器，而此时唾液分泌会减少。我们研究了使用丙烯酸保持器的正畸患者的念珠菌定植情况。
参与者为正畸患者，在保持期完全依从，无念珠菌感染的体征或症状，也无感染风险，分为（a）霍利保持器使用者（研究组）和（b）其他保持器使用者（真空成型/固定粘结保持器；对照组）。收集的数据包括人口统计学特征和习惯。从腭黏膜采集样本，进行培养并在28°C下孵育3天。对念珠菌阳性菌株进行再次培养以鉴定念珠菌种类。
51名患者参与研究（平均年龄20.9±9.6岁）；22名患者使用上颌霍利保持器，29名患者使用上颌真空成型/固定粘结保持器。在硬腭发现白色念珠菌定植的患者有2名（3.9%）——霍利保持器研究组1名（4.5%），对照组1名（3.4%）。
这项初步研究不支持丙烯酸正畸保持器覆盖腭部可能会增加腭黏膜念珠菌定植的假说。
