An evaluation of self-esteem and quality of life in orthodontic patients: Effects of crowding and protrusion

Objective:To evaluate the effect of dental crowding and lip protrusion on self-esteem and quality of life (QOL) in female orthodontic patients with Class I malocclusion.Materials and Methods:The study sample consisted of 201 patients (mean age 22.6 ± 3.0 years) who sought orthodontic treatment. All the patients were evaluated before treatment in terms of their degree of dental crowding and lip protrusion. Rosenberg''s Self-Esteem Scale and the Orthognathic Quality of Life Questionnaire (OQLQ) were used to determine self-esteem and QOL and to evaluate whether these values were related to malocclusion severity.Results:The results indicated that severe crowding and severe protrusion can result in lower self-esteem and poorer QOL (P < .05) than mild crowding and protrusion in Class I malocclusion. In the oral function component of the OQLQ, the severity of protrusion did not have significant effect.Conclusions:In Class I malocclusion, patients with mild crowding or protrusion had significantly better self-esteem and QOL scores than severe crowding or protrusion patients.     

Temporomandibular disorders in prospective orthodontic patients:: Their association with malocclusion severity and impact on oral health–related quality of life

ObjectivesTo determine the prevalence and severity of temporomandibular disorders (TMDs) in prospective orthodontic patients. The association between TMDs and malocclusion severity as well as the impact of TMDs on oral health–related quality of life (OHRQoL) were also examined.Materials and MethodsA total of 350 consecutive patients seeking orthodontic treatment were invited to participate in the study. The presence of TMDs was established with the Fonseca Anamnestic Index (FAI), while malocclusion severity and OHRQoL were evaluated using the Peer Assessment Rating (PAR) index and Oral Health Impact Profile–14 (OHIP-14), respectively. Data were analyzed using chi-square, Kruskal-Wallis, and Mann-Whitney U tests and Spearman''s correlation (P < .05).ResultsOf the 350 patients, 164 consented to participation. Data from 26 participants were excluded because of incomplete entries, and that from 138 subjects (mean age 21.02 ± 5.45 years) were examined. TMD-related symptoms were present in two-thirds of the subjects, with 20.3% experiencing moderate/severe TMDs. While no significant difference in PAR scores were observed between the group with no TMDs and those with TMDs, subjects with TMDs had significantly higher OHIP-14 summary/domain scores than those without TMDs. Although a moderately strong correlation was observed between the FAI and summary OHIP-14 scores (r_s = 0.57), no association was observed between FAI and PAR index scores.ConclusionsThe prevalence of TMD-related symptoms in prospective orthodontic patients was high, emphasizing the importance of screening the masticatory system before initiating orthodontic therapy. Although the presence of TMDs was not associated with malocclusion severity, it had a significant negative impact on OHRQoL.     

成人固定正畸治疗前后的口腔健康相关生活质量

目的 探讨错(牙合)畸形及正畸治疗对患者口腔健康相关生活质量(OH-QoL)的影响趋势和程度,分析可能影响患者生活质量的因素.方法 用口腔健康研究量表(OHIP-14中文版)测量不同类型错(牙合)畸形人群治疗前后的口腔健康生活质量.运用统计分析方法比较162例成人患者正畸治疗开始后1个月(T1)、3个月(T2)、6个月(T3)、12个月(T4)、治疗结束拆除矫正器(T5)、治疗结束后6个月(T6)的口腔健康生活质量变化,分析患者OH-QoL的变化趋势和可能的影响因素.结果 量表各领域中Angle Ⅰ类错殆组及Angle Ⅱ类错(牙合)组在心理不适(领域3)得分最高,而Angle Ⅲ类错(牙合)组在功能限制(领域1)得分最高,患者正畸治疗开始后1个月(T1)OHIP-14平均总得分最高(P＜0.05);同时T0与T1 、T1与T2、T2与T3、T4与T5、T5与T6比较差异均有统计学意义(P＜0.05).正畸治疗后(T6)得分低于治疗前(T0)(P＜0.05),即患者治疗后总体OH-QoL比治疗前提高.各条目中,正畸治疗前(T0)“其他人面前觉得不自在”最常给错(牙合)畸形患者带来负面影响,T1“出现过明显疼痛”、“吃什么东西都不舒服”、“在其他人面前觉得不自在”、“感到紧张不安”、“对自己的饮食不满意”给固定正畸患者带来负面影响最大,与正畸治疗前(T0)比较差异均有统计学意义(P＜0.05).结论 口腔健康状况对本研究患者OH-QoL的影响主要体现在心理不适领域,而对于AngleⅢ类错(牙合)畸形患者的负面影响主要体现在功能障碍方面;错(牙合)畸形的固定正畸矫治过程会对患者产生一定的消极影响,治疗后能改善患者口腔健康,提高患者的口腔健康相关生活质量.     

146例口腔癌患者术后生存质量评价

目的探讨口腔癌患者术后生存质量的变化及其影响因素。方法通过对术后6个月的146例患者华盛顿大学生存质量问卷调查而分析生存质量的变化及影响因素。结果术后患者总体生活质量下降，术后T3、T4组、N0、N1组、颌骨连续性破坏组及根治性颈淋巴结清扫术组分别低于T1、T2组、N3、N4组、颌骨连续组及功能性淋巴结清扫术组。结论术后6个月时口腔癌患者生存质量下降，肿瘤大小、颈淋巴结转移、手术后颌骨的连续性、颈淋巴结清扫术式影响术后生存质量。     

正畸治疗对患者生活质量的影响

目的：研究正畸治疗对患者日常行为的影响,评价患者在治疗过程中生活质量的变化。方法：随机抽取正畸治疗复诊患者400名进行间卷调查,年龄12～38岁,其中男133名,女267名,采用“口腔健康状况对日常行为影响量表”对患者进行测评。结果：①在各项日常行为中,正畸治疗对患者的进食、口腔卫生及社会交往影响较大,疗程越长对患者工作学习的影响越大,并有统计学意义（P〈0．05）。②对正畸治疗影响的主观感受程度,不同疗程及不同年龄组患者之间有显著性差异（P〈0．05）。结论：正畸治疗影响患者的生活质量,并在矫治初期、长疗程及成年患者中表现更为明显。     

固定矫治中青少年及成人患者口腔健康生活质量的比较

目的:比较青少年及成人患者在固定矫治过程中口腔健康生活质量的不同变化特点。方法:选择81例于2013年9月—2015年8月就诊于山东大学口腔医院正畸科的患者,年龄15~25岁,分为青少年组（43例）和成人组（38例）。在矫治前及矫治中3个阶段完成填写口腔健康影响程度量表（OHIP-14）。采用SPSS 20.0软件包对数据进行Friedman双向方差分析、Wilcoxon秩和检验和Bonferroni校正检验。结果:矫治过程中,青少年及成人患者的总得分及除社交障碍、社会功能障碍外5个维度得分均呈下降趋势,差异具有显著性。社交障碍维度仅成人患者得分差异显著。社会功能障碍维度2组得分无显著差异。结论:口腔正畸医师应重视青少年及成人患者矫治中生活质量的变化特点,并根据其特点加强与患者的交流。     

Impact of moderate and severe hypodontia and amelogenesis imperfecta on quality of life and self-esteem of adult patients

ObjectivesThe objective of this study was to investigate the impact of moderate and severe hypodontia and amelogenesis imperfecta on the quality of life and self-esteem of affected adult patients.MethodsForty one adult patients (aged 18–45 years) with clinical and radiological diagnoses of moderate to severe hypodontia and twenty seven patients diagnosed with amelogenesis imperfecta were age and gender matched with a control group of patients attending for routine dental care. Subjects completed the Oral Health Impact Profile [OHIP-49] and Rosenberg Self Esteem Scale. A paired t-test was used to analyse data; the test alpha level was set at P ≤ 0.05.ResultsThe results for hypodontia patients were significantly different from controls in six out of the seven OHIP-49 domains, the exception being the Handicap domain. Total scores were also significantly different between the two groups (P = 0.003). Self-esteem was not significantly different between the two groups (P = 0.98).For amelogenesis imperfecta patients the results were significantly different from control patients in four out of the seven domains of the OHIP-49 and also in the total scores (P = 0.01). When self-esteem was investigated there was no significant differences between the two groups (P = 0.92).ConclusionsModerate to severe hypodontia and amelogenesis imperfecta have marked negative impacts on the Oral Health Related quality of life of this patient population relative to controls. However, self-esteem was not significantly affected.     

无托槽隐形矫治初期患者口腔健康相关生活质量初步研究

目的研究无托槽隐形矫治器对患者口腔健康相关生活质量（OH-QoL）的影响,为矫治前采取针对性的健康指导提供参考。 方法选取佩戴无托槽隐形矫治器≤3副的患者60例,分别在治疗前（T0）及佩戴无托槽隐形矫治器后首次复诊时（T）现场填写口腔健康影响程度量表（OHIP-14）中文版并回收,比较无托槽隐形矫治前和矫治初期患者OH-QoL的差异。 结果采用配对样本t检验比较患者在无托槽隐形矫治前（T0）和佩戴无托槽隐形矫治器初期（T）量表得分,其中影响发音（T0= 0.81,T= 2.68;t= 4.159,P= 0.0142）、味觉变差（T0= 0.64,T= 1.60;t= 3.483,P= 0.0253）、出现过明显疼痛（T0= 0.52,T= 2.82;t= 6.388,P= 0.0031）、吃什么东西都不舒服（T0= 0.72,T= 1.79;t= 6.288,P= 0.0033）、不能很好的休息（T0= 0.32,T= 1.34;t= 4.560,P= 0.0103）,5项的差异均有统计学意义。 结论无托槽隐形矫治初期患者的OH-QoL与治疗前比较,受到一定程度的不良影响,主要体现在功能限制、生理性疼痛、心理障碍三方面,建议佩戴无托槽隐形矫治器前介入健康指导,预防性降低矫治对患者OH-QoL的影响,提高矫治积极性和依从性。     

Dentofacial deformity and orthognatic surgery: Influence on self-esteem and aspects of quality of life

This study aimed to assess the extent to which psychosocial and functional aspects are affected in orthognathic surgery patients. The Oral Health Impact Profile (OHIP-CRO14), Orthognathic Quality of Life Questionnaire and Self-Esteem (SE) Scale were used. The sample included 110 Caucasian subjects (73% females) aged 19–54 years. Fifty-five patients with dentofacial deformities were treated by combined orthodontic-orthognathic surgical treatment, and 55 others, matched by sex and age, were untreated controls without dentofacial deformities. In comparison with the untreated subjects, patients before surgery had a poorer quality of life, with the largest effect size in oral function (OF) and OHIP (average differences 8.0 and 14.7, respectively; p < 0.001; r = 0.65 and 0.63), while the lowest effect sizes were in awareness of facial aesthetics (AW) and SE. The treatment induced statistically significant changes in all psychosocial and functional aspects, mainly with a large effect size (p < 0.001; r = 0.48–0.78). The major effect size was a decrease in facial aesthetic concerns (FE; 7.6 ± 6.2; p < 0.001; r = 0.78), followed by a decrease in impairment of OF and OHIP (8.0 ± 7.1 and 16.6 ± 14.6; p < 0.001; r = 0.75). The lowest effect size was in the decrease in AW and increase in SE. After surgery, all aspects were similar to those in the untreated subjects. In conclusion, facial deformity raises many issues, primarily related to aesthetic concerns and functional impairment; however, orthognathic surgery manages to improve quality of life to be similar to that of the population without deformities.     

口腔癌患者手术前后生存质量的比较

目的：研究口腔癌患者手术前、手术后2个月、12个月3个时间点的生存质量变化情况。方法：运用FACT－H&N中文版（The functional assessment of cancer therapy－head and neck,肿瘤治疗的功能性评估－－头颈问卷）对某三甲医院确诊为口腔癌的141例患者在其手术前、手术后2个月、12个月进行生命质量测评。结果：研究对象在手术前后3个时间点的生命质量总得分的平均分分别为111．83±12．34、100．45±13．21和122．32±12．98,手术前后不同时间点的生命质量差异具有统计学意义（P＜0．05）。其中头颈模块的得分平均分分别为33．65±5．37、26．63±5．12和34．94±6．58,且手术后2个月头颈模块的得分与手术前、手术后12个月的差异均具有统计学意义。结论：FACT－H＆N中文版能全面评价口腔癌患者的生命质量;口腔癌患者生命质量的水平在手术后2个月最低,手术后12个月能基本恢复到术前水平;手术治疗口腔癌患者能使其生命质量在手术后12个月得到提高。     

Effect of orthodontic treatment on oral health–related quality of life

Objective:To assess changes in oral health–related quality of life (OHQoL) in children undergoing fixed orthodontic treatment and compare it to that of two groups not receiving treatment.Materials and Methods:Two hundred eighty-four subjects aged 12–15 years were followed for 2 years; 87 were undergoing treatment at a university clinic (TG), 101 were waiting for treatment at this clinic (WG), and 96 were attending a public school and had never sought treatment (SG). OHQoL was assessed using the Oral Health Impact Profile (OHIP-14). All subjects were examined and interviewed at baseline (T1), 1 year later (T2), and 2 years later (T3). OHIP-14 scores were analyzed using negative binomial regression in generalized estimating equations for correlated data.Results:During the follow-up period, the WG and TG OHIP-14 scores showed a statistically significant increase and decrease, respectively (P < .001). At T1, the TG had an OHIP-14 score that was 1.9 times higher than that of the SG; however at T3, the TG score was 60% lower than the initial score of the SG. Adjusting for age, gender, dental health status (DMFT), socioeconomic position, malocclusion severity, and self-perceived esthetics did not change the effect of orthodontic treatment on OHQoL.Conclusion:Fixed orthodontic treatment in Brazilian children resulted in significantly improved OHQoL after 2 years.     

口腔癌患者的心理困扰及生存质量研究

目的: 探讨口腔癌患者的心理现状及其影响因素,以及与生存质量相关的因素。方法: 使用心理困扰温度计（distress themometer,DT）和华盛顿大学生存质量量表（University of Washington Quality of Life Questionnaire,UW-QOL）对郑州大学第一附属医院2016年10月—2017年9月收治的250例口腔癌患者进行问卷调查。应用SPSS20.0软件包对数据进行统计学分析。结果: 发放问卷250份,实际回收有效问卷239份。在239例口腔癌患者中,DT分数≥4分139例（58.2%）,UWQOL量表平均得分53.3±17.1;<4分的患者100例（41.8%）,UWQOL量表平均得分52.8±17.4,DT总平均得分4.56±2.18。单因素分析结果显示,心理困扰与年龄、文化程度、收入水平、病理分期、颌骨切除、复发6个因素有关（χ²值分别为5.12、21.31、34.2、10.69、31.3和7.84,P<0.05）。Logistic回归分析显示,年龄、颌骨切除、复发是影响口腔癌患者心理困扰的危险因素（OR值分别为4.06、5.12和5.79,P<0.05）。Spearman相关分析显示,UWQOL量表中疼痛、娱乐、情绪、焦虑4个条目得分与心理困扰得分呈负相关（r分别为-0.58、-0.84、-0.66和-0.69,P<0.05）。结论: 口腔癌患者的心理困扰发生率较高;年龄越小、做过颌骨切除、复发的患者心理困扰程度更严重。对口腔癌患者施行个体化的治疗方案、术后护理及心理疏导,可能会减轻患者的心理困扰程度。     

Bullying in orthodontic patients and its relationship to malocclusion,self-esteem and oral health-related quality of life

Abstract

Objectives: To measure the self-reported frequency and severity of bullying amongst patients referred for orthodontic treatment and to investigate whether there is a relationship between levels of self-reported bullying, malocclusion and need for orthodontic treatment and an individual’s self-esteem and oral health-related quality of life (OHRQoL).

Design and setting: Cross-sectional study of an adolescent group referred for orthodontic assessment at three UK hospitals.

Subjects and methods: Three hundred and thirty-six participants aged between 10 and 14 years were recruited. Validated questionnaires were used to measure the self-reported frequency and severity of bullying, self-esteem and OHRQoL. Orthodontic treatment need was assessed using IOTN.

Results: The prevalence of bullying was 12·8%. Being bullied was significantly associated with Class II Division 1 incisor relationship (P?=?0·041), increased overbite (P?=?0·023), increased overjet (P?=?0·001) and a high need for orthodontic treatment assessed using AC IOTN (P?=?0·014). Bullied participants also reported lower levels of social competence (P<0·001), athletic competence (P<0·001), physical appearance related self-esteem (P<0·001) and general self-esteem (P<0·001). Higher levels of oral symptoms (P?=?0·032), functional limitations (P<0·001), emotional (P<0·001) and social impact (P<0·001) from their oral condition, resulting in a negative impact on overall OHRQoL (P<0·001), were also reported.

Conclusions: Significant relationships exist between bullying and certain occlusal traits, self-esteem and OHRQoL.     

口腔癌患者术后生存质量评价及影响因素分析

目的：评价口腔癌患者术后的生存质量（quality of life,QOL）,并探讨影响无瘤生存者术后QOL的可能因素。方法：采用SF-36及UW-QOL测量55例口腔癌患者术前和术后12个月的QOL,采用SPSS12.0软件包对数据进行统计学分析。结果：①复发患者术后的QOL显著低于无瘤生存者。②与术前相比,术后12个月时,无瘤生存者仍存在较严重的治疗相关的特异性问题和较差的社会功能状况。③文化程度、婚姻状况、共病、缺损范围及放疗影响无瘤生存者术后QOL,初、高级文化程度、配偶健在、不伴有共病、缺损最大径〈6cm及术后未放疗的患者,术后QOL较高。④不同的颈清扫术式对无瘤生存者手术前后QOL总分的差值没有影响,但副神经保留组术后的肩功能明显优于副神经切除组。结论：保留副神经可改善颈清扫患者的肩功能;降低复发率、加强慢性病的预防及控制、改进放疗手段、增加社会支持及必要的康复指导和治疗可提高口腔癌患者术后的QOL。     

97例口腔癌患者术前生存质量的初步评价

目的:描述口腔癌患者术前的生存质量(quality of life,QOL)状况;分析社会人口学特点、临床特点对术前QOL的影响.方法:采用36条目简明健康状况调查问卷(SF-36)中文版和华盛顿大学生存质量问卷(UW-QOL)第4版,对97例口腔鳞癌患者术前的QOL进行测量.将97例患者分别按社会人口学特点和临床特点分组.组间差异采用SPSS12.0软件包进行Mann-Whitney U检验.将癌症患者SF-36的得分与普通人群参考值进行独立样本t检验.结果:①与普通人群配伍组比较,高龄患者有着相似的QOL值,而低龄患者则在躯体角色、身体疼痛和情感角色等领域表现出较低的QOL值;②T分期是影响术前QOL的最重要因素;③社会人口学特点如性别、年龄和共病等对QOL的影响主要体现在活力、躯体功能、躯体角色、情绪等反映身体状况和心理状况的指标上,而与口腔相关的特异性问题(口干除外)基本无关.而临床特点如肿瘤分期和部位对QOL的影响则不仅表现在与口腔相关的多项特异性问题上,如咀嚼、吞咽、发音、味觉等,还与身体疼痛、躯体角色、情感角色等反映身体状况和心理状况的指标密切相关.结论:与普通人群参考值进行比较.能更精确地反映口腔癌患者的QOL信息;临床特点对术前QOL的影响大于社会人口学特点;将普适性测量与头颈特异性量表结合,能更全面地评价口腔癌患者的QOL.联合使用UW-QOL和SF-36能较好地达到这一目的.     

口腔癌患者术后舌神经功能障碍与生活质量的关系评价

目的: 通过自制问卷,调查口腔癌根治术后出现舌神经损伤患者的口腔功能及生活质量情况,为临床上管理舌神经损伤患者提供依据。方法: 通过对350例患者进行定性感觉分析,筛选出其中存在舌感觉麻木症状的40例患者,采用自制《舌感觉功能障碍康复问卷》进行问卷调查。结果: 调查结果显示,舌感觉功能障碍5种最常见表现依次为①对于感觉的改变无法恢复的恐惧感;②难以做出需要舌参与的表情;③讲话时遇到困难;④无法意识到口底或舌头上的食物残留以维持口腔卫生;⑤因舌感觉的改变而难以入眠。结论: 舌感觉功能障碍从多方面导致生活质量下降,口腔颌面外科医护人员应加强对舌神经损伤的围术期评估和管理。     

Impact of dental care on oral health-related quality of life and treatment goals among elderly adults

BACKGROUND: General dental care can effectively control disease and restore damaged tissue, yet little is known about its impact on patients' subjective oral health, namely treatment goals and oral health-related quality of life (OHRQoL). This study aimed to evaluate change in both aspects of subjective oral health among elderly adults receiving publicly-funded, general dental care. METHODS: We conducted a prospective, single-group intervention study of adults aged 75+ years receiving care through the South Australian Dental Service (SADS). Before receiving dental care, subjects completed the Oral Health Impact Profile (OHIP-14) questionnaire which evaluates OHRQoL. In this questionnaire, subjects rated the extent to which they had attained a self-nominated oral health goal. Dentists provided standard-of-care treatment and six months later the OHIP-14 and goal attainment questions were re-administered. RESULTS: Among the 253 adults studied, overall improvements in OHRQoL were observed (p < 0.05), although the effect was dependent on pre-treatment goal: mean OHIP-14 scores did not change significantly for subjects whose goal was less pain/discomfort while significant improvements were observed for subjects with other treatment goals. In contrast, mean goal attainment ratings improved significantly (P < 0.05), regardless of treatment goal categories. CONCLUSIONS: Dental care was associated with improvements in subjective oral health, although different patterns of improvement were observed for OHRQoL compared with goal attainment ratings.     

慢性咽炎患者口腔健康相关生活质量的调查

目的 测评慢性咽炎对患者口腔健康相关生活质量的影响,为临床诊疗提供参考.方法 收集慢性咽炎患者(慢性咽炎组)130例,另外选取362名常规来院进行口腔检查的普通人群(健康常规组)为对照,采用中文版口腔健康程度量表(oral health related impact profile-14,OHIP-14)进行口腔健康情况测评,并记录个体基本情况和专科检查情况.对OHIP-14得分与各健康因素进行Spearman相关分析与线性回归分析.结果 慢性咽炎组OHIP-14总分为(9.52±7.41)分,显著高于健康常规组(7.45±7.90)分,差异主要体现在功能限制、生理性疼痛、心理不适几个方面.Spearman相关分析结果显示OHIP-14得分与患者的年龄(rs=0.238,P=0.01)、咽部不适程度(rs=0.473,P<0.001)和龋失补牙数(rs=0.26,P=0.005)具有相关性.多重线性分析显示OHIP-14得分与咽部不适程度(steβ=0.353,P<0.001)、龋失补牙数显著相关(steβ=0.186,P=0.037),确定系数R2=0.294.结论 慢性咽炎患者总体口腔健康相关生活质量低于普通人群,应采取相应的预防措施改善患者的口腔健康.     

Impact of wearing fixed orthodontic appliances on quality of life among adolescents: Case-control study

Objective:To investigate the impact of wearing a fixed orthodontic appliance on oral health-related quality of life (OHRQoL) among adolescents.Materials and Methods:A case-control study (1∶2) was carried out with a population-based randomized sample of 327 adolescents aged 11 to 14 years enrolled at public and private schools in the City of Brumadinho, southeast of Brazil. The case group (n  =  109) was made up of adolescents with a high negative impact on OHRQoL, and the control group (n  =  218) was made up of adolescents with a low negative impact. The outcome variable was the impact on OHRQoL measured by the Brazilian version of the Child Perceptions Questionnaire (CPQ_11–14) – Impact Short Form (ISF:16). The main independent variable was wearing fixed orthodontic appliances. Malocclusion and the type of school were identified as possible confounding variables. Bivariate and multiple conditional logistic regressions were employed in the statistical analysis.Results:A multiple conditional logistic regression model demonstrated that adolescents wearing fixed orthodontic appliances had a 4.88-fold greater chance of presenting high negative impact on OHRQoL (95% CI: 2.93–8.13; P < .001) than those who did not wear fixed orthodontic appliances. A bivariate conditional logistic regression demonstrated that malocclusion was significantly associated with OHRQoL (P  =  .017), whereas no statistically significant association was found between the type of school and OHRQoL (P  =  .108).Conclusions:Adolescents who wore fixed orthodontic appliances had a greater chance of reporting a negative impact on OHRQoL than those who did not wear such appliances.     

Micro-osteoperforation effectiveness on tooth movement rate and impact on oral health related quality of life:: A randomized clinical trial

ObjectivesTo investigate the effect of micro-osteoperforation (MOP) on the rate of tooth movement (RTM), space closure duration, and oral health–related quality of life (OHRQoL) during completion of anterior retraction in patients undergoing combined orthodontic-surgical treatment after premolar extraction and decompensation with sliding mechanics.Materials and MethodsTwenty-four participants with indications for premolar extractions were randomly allocated to treatment with conventional sliding mechanics (control group; CG) or with to treatment in which three MOPs were performed every activation (experimental group; EG). Dental impressions were taken monthly until space closure was completed and dental casts were converted to three-dimensional models. After the anterior retraction procedure, Oral Health Impact Profile (OHIP-14) questionnaires were filled out at 4 and 72 hours.ResultsEighteen patients (7 men and 11 women) remained in the trial until space closure was completed (mean follow-up period = 247 days). For full space closure RTM, no significant difference (P = .492) was found between groups (0.614 mm/month for the CG; 0.672 mm/month for the EG). The RTM for different time points, groups, time frames and their interaction were statistically different (P < .05). In multiple correlation analysis, the RTM significantly decreased over time for both groups (P < .05). The OHRQoL scores were significantly higher (worse) for the EG. The psychological, physical and social disabilities, and handicap domains displayed significant differences between the two groups.ConclusionUse of MOPs did not change the full space closure RTM, while it had a negative impact on OHRQoL.