Dental laboratories · Pennsylvania

DSG Muth & Mumma Dental Lab

Harrisburg, PA · ~38 workers · 5 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.0
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

DSG Muth & Mumma Dental Lab runs at 59% of its industry's injury rate - safer than the typical Dental laboratories workplace, earning a grade B.

DSG Muth & Mumma Dental Lab: 2.0 TCR = 59% of Dental laboratories BLS 3.3 · 5y Form 300A (see methodology below)

DSG Muth & Mumma Dental Lab safety composite

DSG Muth & Mumma Dental Lab scores strongest on dart rate (safer than 72% of same-industry peers) and weakest on fatalities (safer than 50%), 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).

C

65/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.96 per 100 workers

Safer than 67% 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%).

DSG Muth & Mumma Dental Lab held a steady TCR band

DSG Muth & Mumma Dental Lab's TCR held near 0.0 from 0.0 in 2016 to 0.0 in 2020. Peak filing year was 2018 at 6.6 TCR. In 2020, DART was 0× this establishment's average TCR (severity share of cases).

2016=0.0 · 2017=0.0 · 2018=6.6 · 2019=3.2 · 2020=0.0

OSHA ITA Form 300A scorecard

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

Grade B · TCR 2.0 · 59% of ind

  • DART 0.0 DART
  • RANK #2/7
  • PHOTO Heritage Lab
  • BOOK 5y book
  • INJ 3 inj
  • SIZE ~38 FTE

Nearest TCR peer: Heritage Lab (0.0 TCR gap)

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

DSG Muth & Mumma Dental Lab in the TCR neighbourhood

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

TCR

What this shows DSG Muth & Mumma Dental Lab averages 2.0 TCR (59% of the Dental laboratories BLS benchmark).

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

DSG Muth & Mumma Dental Lab TCR series: 2016=0 · 2017=0 · 2018=6.6 · 2019=3.2 · 2020=0 · BLS 3.3

Where DSG Muth & Mumma Dental Lab falls in its industry

184 Dental laboratories establishments

Safer than 67% 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 #2 safest of 7 Dental laboratories employers in Pennsylvania.

DSG Muth & Mumma Dental Lab (38 employees, TCR 2.0) 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 DSG Muth & Mumma Dental Lab
DSG Muth & Mumma Dental Lab (38 employees, TCR 2.0) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 2.6

DSG Muth & Mumma Dental Lab has fewer employees than the Dental laboratories median and a lower 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
2020 0.0 0.0 0 0 0
2019 3.2 0.0 1 0 0
2018 6.6 0.0 2 0 0
2017 0.0 0.0 0 0 0
2016 0.0 0.0 0 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 Heritage Lab 2.0 TCR
NAICS-TCR James R. Glidewell Dental Ceramics - RDC 2.0 TCR
NAICS-TCR DSG HARMONY 1.9 TCR
NAICS-TCR 00520 - ADL 1.9 TCR
STATE-SIZE Kaolin Mushroom Farms - M&J Facility 38 FTE
STATE-SIZE Dairy 38 FTE
STATE-SIZE Pioneer Hi-Bred International Inc - Elizabethtown 38 FTE
STATE-SIZE Risser's Poultry Handling Services, LLC 38 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 Oncor SOSF 2.0 TCR
NAT-TCR Cedar Park CP 2.0 TCR
NAT-TCR 206 Laredo, Tx 2.0 TCR
NAT-TCR Joseph Phelps Vineyards - Winery 2.0 TCR
NAT-SIZE CPG Mobile 38 FTE
NAT-SIZE Vermillion Biotest Plasma Center 38 FTE
NAT-SIZE C2U:C2100 - C2100-C-2 Utility Corporate 38 FTE
NAT-SIZE 204 - Shawnee Retail Store 38 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: 2020, 2019, 2018, 2017, 2016. 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.