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Related Concept Videos

Actuarial Approach01:20

Actuarial Approach

The actuarial approach, a statistical method originally developed for life insurance risk assessment, is widely used to calculate survival rates in clinical and population studies. This method accounts for participants lost to follow-up or those who die from causes unrelated to the study, ensuring a more accurate representation of survival probabilities.
Consider the example of a high-risk surgical procedure with significant early-stage mortality. A two-year clinical study is conducted,...
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Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
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Assumptions of Survival Analysis01:15

Assumptions of Survival Analysis

Survival models analyze the time until one or more events occur, such as death in biological organisms or failure in mechanical systems. These models are widely used across fields like medicine, biology, engineering, and public health to study time-to-event phenomena. To ensure accurate results, survival analysis relies on key assumptions and careful study design.
Cancer Survival Analysis01:21

Cancer Survival Analysis

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Comparing the Survival Analysis of Two or More Groups01:20

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Related Experiment Video

Updated: Jun 21, 2026

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
06:55

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index

Published on: January 8, 2020

Prospective treatment analysis: are we planning adequately?

Yehya A Mostafa1

  • 1CUFODM Department of Orthodontics and Dentofacial Orthopedics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt. mangoury@usa.net

World Journal of Orthodontics
|July 8, 2009
PubMed
Summary

3D imaging is transforming orthodontic diagnostics, introducing a new philosophy centered on prospective treatment analysis (PTA). This approach utilizes End Result Analysis (ERA), Subtraction Analysis (SA), and Treatment Analysis (TA) to guide treatment planning.

Related Experiment Videos

Last Updated: Jun 21, 2026

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
06:55

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index

Published on: January 8, 2020

Area of Science:

  • Orthodontics
  • Dental Imaging
  • Diagnostic Philosophy

Background:

  • The field of orthodontics is undergoing significant transformation.
  • Advancements in 3D imaging technology are revolutionizing diagnostic approaches.

Purpose of the Study:

  • To explore the impact of 3D imaging on orthodontic diagnostic philosophy.
  • To evaluate the readiness and availability of tools for the prospective treatment analysis (PTA) triad: End Result Analysis (ERA), Subtraction Analysis (SA), and Treatment Analysis (TA).

Main Methods:

  • Review of current orthodontic diagnostic philosophies.
  • Assessment of the integration and application of 3D imaging in clinical practice.
  • Analysis of the components of prospective treatment analysis (PTA).

Main Results:

  • 3D imaging is a key driver in the evolution of orthodontic diagnostics.
  • The prospective treatment analysis (PTA) concept, comprising ERA, SA, and TA, is central to this new philosophy.
  • The availability and preparedness for implementing the full PTA triad require further investigation.

Conclusions:

  • The integration of 3D imaging necessitates a shift towards a prospective treatment analysis (PTA) philosophy in orthodontics.
  • Further evaluation is needed to confirm the widespread availability of the necessary armamentarium for ERA, SA, and TA.
  • The orthodontic profession must assess its readiness for adopting comprehensive PTA.