Confidence should follow study design
A clinical practice portal, a retrospective series and a single case answer different questions. This library shows the useful finding and the boundary beside it.
Clinical framework
ASHA
Defines voice disorders, includes puberphonia among functional presentations and sets out team assessment and management.
Practice guidance; not a puberphonia treatment trial.
Treatment series
Dagli et al. · 2008
Forty-five consecutive patients improved on reported acoustic and perceptual outcomes, maintained at six months.
Retrospective, small and without a randomised comparison group.
Treatment case
Kruse & Fujiki · 2026
One adolescent lowered speaking fundamental frequency after a staged voice-therapy approach.
Single case; authors call for controlled studies.
Pubertal development
Harries et al. · 1998
Vocal-fold length and speaking fundamental frequency changed across male puberty.
Describes typical puberty, not puberphonia treatment.
Self-voice perception
Orepic et al. · 2023
Bone conduction contributed to recognising one’s own voice.
Helps explain recording mismatch; does not explain a whole voice-transition experience.
Research gaps
Questions that still deserve better answers
- Prospective and comparative treatment trials with transparent protocols.
- Long-term follow-up beyond immediate pitch change.
- Adult experiences of carryover, identity and internal voice perception.
- Quality-of-life outcomes, not only acoustic measures.
- Clearer terminology and better reporting of coexisting conditions.
- The role of psychological support without presuming psychological causation.