Dental Laboratories · Pennsylvania

Ndx Muth Mumma

Harrisburg, PA · ~28 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Ndx Muth Mumma runs at 87% of its industry's injury rate - about level with the typical Dental Laboratories workplace, earning a grade C.

Ndx Muth Mumma: 2.9 TCR = 87% of Dental Laboratories BLS 3.3 · 3y Form 300A (see methodology below)

Ndx Muth Mumma safety composite

Ndx Muth Mumma scores strongest on dart rate (safer than 72% of same-industry peers) and weakest on total case rate (tcr) (safer than 41%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 2.87 per 100 workers

Safer than 41% of industry peers

DART rate
C 0 per 100 workers

Safer than 72% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Ndx Muth Mumma: 4.0 → 4.6 TCR

Peak year 2024 @ 4.6 TCR · DART/TCR 0× in 2024

Ndx Muth Mumma's TCR rose 0.6 from 4.0 in 2022 to 4.6 in 2024. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 339116 · Harrisburg, PA AT/BELOW-IND · SMALL

Grade C · TCR 2.9 · 87% of ind

  • DART 0.0 DART
  • RANK #3/7
  • PHOTO Ottawa Dental Labora…
  • BOOK 3y book
  • INJ 2 inj
  • SIZE ~28 FTE

Nearest TCR peer: Ottawa Dental Laboratory (0.0 TCR gap)

Read with this employer → · Industry book → · Pennsylvania employers → · Look up another →

Ndx Muth Mumma in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Ndx Muth Mumma averages 2.9 TCR (87% of the Dental Laboratories BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Ndx Muth Mumma TCR series: 2022=4 · 2023=0 · 2024=4.6 · BLS 3.3

Where Ndx Muth Mumma falls in its industry

184 Dental Laboratories establishments

Safer than 41% of graded establishments in this industry, whose median TCR is 2.6.

More dangerous than peersSafer than peers

Narrower to Pennsylvania alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 7 Dental Laboratories employers in Pennsylvania.

Ndx Muth Mumma (28 employees, TCR 2.9) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 2.6 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,500 02468 Average employees Total Case Rate Ndx Muth Mumma
Ndx Muth Mumma (28 employees, TCR 2.9) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 2.6

Ndx Muth Mumma has fewer employees than the Dental Laboratories median and a higher injury rate than the industry's median TCR of 2.6. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 4.6 0.0 1 0 0
2023 0.0 0.0 0 0 0
2022 4.0 4.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

339116 · PA · Harrisburg

184 Dental Laboratories employers nationwide with a credible TCR · 22,692 rated employers in Pennsylvania with headcount on file · 362 employers in Harrisburg, PA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Ottawa Dental Laboratory 2.9 TCR
NAICS-TCR Renstrom Dental Studio 2.9 TCR
NAICS-TCR Wiand Dental Lab 2.9 TCR
NAICS-TCR Harrison Dental Studio 2.9 TCR
STATE-SIZE Masda Mushroom LLC 28 FTE
STATE-SIZE Scenery Hill 28 FTE
STATE-SIZE Production Fire and Safety LLC., DBA Ampro Strategic Alliance PA 28 FTE
STATE-SIZE Bethlehem Energy Center 28 FTE
CITY-NEAR UPMC Pinnacle Hospitals 4,843 FTE
CITY-NEAR PHS/HARRISBURG HOSPITAL 2,703 FTE
CITY-NEAR Pinnacle Health Medical Services 2,426 FTE
CITY-NEAR UPMC Pinnacle 2,311 FTE
NAT-TCR Molex West Bond 2.9 TCR
NAT-TCR Alliance Automation 2.9 TCR
NAT-TCR Ward Timber 2.9 TCR
NAT-TCR Martinez Steel 2.9 TCR
NAT-SIZE West Bend Elevator, Inc 28 FTE
NAT-SIZE Murnane Packaging Corporation 28 FTE
NAT-SIZE Brookdale Florence 28 FTE
NAT-SIZE Damage Control 28 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.