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临床试验/NCT02668289
NCT02668289已完成不适用

Periodontal Phenotype and Supracrestal Soft Tissue Dimentions - Clinical Correlations and Their Impact on Post-extraction Volumetric Changes

Gustavo Avila-Ortiz DDS, MS, PhD1 个研究点 分布在 1 个国家目标入组 42 人开始时间: 2016年1月31日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
已完成
发起方
入组人数
42
试验地点
1
主要终点
Percentage change in tissue volume - Rank Correlations

研究概览

简要总结

The purpose of this trial is to determine the correlations between various tissue dimensions and the changes that occur following a single-tooth dental extraction in human adults.

65 adult subjects who are in need of dental extractions will be recruited. Clinical measurements will be gathered prior to and immediately following the single tooth extraction. There will be a 2-week post-operative visit to assess healing and a 14-week follow-up for photographic documentation and clinical measurements of the extraction area.

详细描述

Periodontal phenotype, also known as periodontal biotype, has been recognized as one of the key factors that may potentially impact the outcome of a variety of esthetic restorative procedures. With the increasing esthetic demand of patients in the context of tooth replacement therapy in the anterior esthetic zone, the ability to determine the prognostic value and the influence on treatment outcomes of this parameter has become a critical component of contemporary treatment planning. Periodontal phenotype encompases "bone morphotypes, shapes of the teeth, morphologic characteristics of the gingiva and the periodontium".

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 75 Years(Adult, Older Adult)
性别
All
接受健康志愿者
是

入选标准

  • •Age: 18 to 75 years
  • •Gender: No restriction
  • •Subjects must require a single-rooted tooth extraction (Tooth deemed as periodontally and/or restoratively hopeless) in the maxillary anterior region (first premolar to first premolar)
  • •Subjects must be able and willing to follow instructions related to the study procedures
  • •Subjects must have read, understood and signed an informed consent form

排除标准

  • •More than 1 mm of recession present on the tooth planned for extraction and inclusion in the study
  • •Reported allergy or hypersensitivity to any of the products to be used in the study
  • •Severe hematologic disorders, such as hemophilia or leukemia
  • •Active severe infectious diseases that may compromise normal healing
  • •Liver or kidney dysfunction/failure
  • •Currently under cancer treatment or within 18 months from completion of radio- or chemotherapy
  • •Subjects who have a long-term history of oral bisphosphonate use (i.e. 10 years or more)
  • •Subjects with a history of IV bisphosphonates
  • •Subjects with uncontrolled diabetes, defined as Hba1c > 7.0
  • •Subjects with severe metabolic bone diseases, such as Paget's disease of bone, will be excluded
  • •Pregnant women or nursing mothers
  • •Heavy smokers: Subjects who have smoked >10 cigarettes per day within 6 months of study onset
  • •Concomitant medications: Subjects on concomitant drug therapy for systemic conditions that may affect the outcomes of the study will not be included in the study.
  • •NOTE: Occasional, short-term use (7-14 days) of analgesics or common cold medications is permitted. Use of such medications will be reviewed and recorded by the investigator.
  • •Any other non-specified reason that from the point of views of the investigators will make a candidate not a suitable subject for the study (e.g. limited mouth opening).

研究组 & 干预措施

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: consent (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: Screening (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: Xray (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: PVS Impressions (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: Photographs (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: CBCT (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: Anesthesia (Other)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: Extraction (Procedure)

interventional

Other

consent, screening, xrays, PVS impressions, photographs, CBCT, anesthesia, extraction, clinical measurements

干预措施: Clinical measurements (Other)

结局指标

主要结局

Percentage change in tissue volume - Rank Correlations

时间窗: 14 weeks

For the purpose of this study, a 10-20% reduction in the volume must detectable. Pearson correlations will be used to assess associations if appropriate and Spearman rank correlations will be considered if needed.

次要结局

  • Probing Depths of soft tissue dimensions(14 weeks)
  • bone thickness ( facial and lingual) - Correlations(14 weeks)
  • soft tissue thickness (facial and lingual) -correlations(14 weeks)

研究者

发起方
Gustavo Avila-Ortiz DDS, MS, PhD
申办方类型
Other
责任方
Sponsor Investigator
主要研究者

Gustavo Avila-Ortiz DDS, MS, PhD

Principal Investigator

University of Iowa

研究点 (1)

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