Table 1: Synthesis of evidence-based studies (n = 21) supporting the conceptual structure, sensory screening, and psychosocial components of the UBSP.

Domain

Ref.

Author (Year)

Main Focus / Denouement

Application at UBSP

Fundamentals of Nociplastic Pain

[1]

Kosek (2024)

IASP criteria for nociplastic pain.

Definition of the core phenotype.

 

[14]

Nijs (2021)

Phenotyping of pain in the future.

Basis for the Step 1 structure.

 

[16]

Bilika (2025)

Application of criteria in chronic pain.

Protocol logic validation.

 

[23]

Raja (2020)

Revision of the definition of pain.

Multidimensional approach.

 

[26]

Ablin (2024)

Multidisciplinary pain management.

Justification of the screening model.

Orofacial Pain and TMD

[4]

Al‑Harthy (2025)

Need for TMD education.

Clinical justification of the study.

 

[5]

Badri (2025)

Psychological distress in the OFP clinic.

Need for Step 2 (psychosocial).

 

[6]

Ferrillo (2022)

Central awareness in TMD.

Connection between TMD and nociplasticity.

 

[11]

NASEM (2020)

Individual load gives TMD.

Socioeconomic and clinical impact.

 

[33]

Schiffman (2014)

Gold Standard DC/TMD.

Reference for clinical diagnosis.

Ultra-short instruments

[12]

Neves (2025)

SAS-3 validation.

Step 2 anxiety tool.

 

[13]

Neves (2025)

PCS-S validation.

Step 2 catastrophizing tool.

 

[27]

Kroenke (2009)

PHQ-4 validation.

Convergent validity reference.

 

[9]

Sullivan (1995)

Structure of the original PCS.

Theoretical basis for the short version.

 

[10]

Baguley (2001)

Rapid symptom screening.

Concept of efficiency in instruments.

Feasibility and Screening

[7]

van Driel (2024)

Practical guide to sensory testing.

Basis for sensory screening (Step 1b).

 

[24]

Stretanski (2025)

Evaluation methods that of pain.

Standardization of Step 1a.

 

[25]

Arant (2022)

Remote tenderness in chronic pain.

Rationale for evaluating remote locations.

 

[28]

Sailing (2024)

Psychological profiles and clinical pain.

Sensory‑psychological integration.

 

[37]

Li (2023)

Reliability of brief protocols.

Proof that <10 min protocols work.

 

[38]

Alagappan (2025)

Implementation of biopsychosocial.

Support for fast workflow.

Note: This selection represents the core studies identified during the systematized literature review that directly informed the protocol's development. The numbering follows the order of citation in the main text.